Any help with this would be great! Explanations definitely welcome, thanks in advance for any help:) What is the major product of the reactions? The image depicts a chemical reaction involving an alkyne undergoing addition with hydrobromic acid (HBr) in excess. The initial structure is a six-carbon chain with a triple bond between the second and third carbons. The reaction results in the formation of various dibromoalkane products.**Structures:**1. **Reactant (Top Structure):** - A six-carbon alkyne with a triple bond between the second and third carbons. - Noted: Reaction with HBr (excess).2. **Products (Labeled a-d):** a) A six-carbon chain with two bromine atoms added, one each on the second and third carbons. b) A six-carbon chain where bromine atoms are positioned on the second and fourth carbons, with each bromine on its respective carbon. c) A six-carbon chain with two bromine atoms added to the third carbon, creating a geminal dibromide. d) A six-carbon chain with two bromine atoms added. The first bromine is on the fourth carbon, and a bromine atom is placed on what was originally the fifth carbon, forming a vicinal dibromide with a double bond between the second and third carbons.These structures illustrate the various isomers that can form through the addition of HBr across an alkyne in excess conditions. ### Reaction and Options:**Reaction Setup:**- Starting Material: Benzene ring- Reagents: DBr (Deuterium Bromide)- Conditions: -78°CThe goal is to predict the product of the reaction indicated by a question mark.**Possible Products:**1. **Structure (a):** A cyclohexene ring with a deuterium (D) atom and a bromine (Br) atom at adjacent carbon positions.2. **Structure (b):** A cyclohexene ring with a deuterium (D) atom and a bromine (Br) atom at opposite carbon positions.**Question:**Which structure is the correct product of the reaction?- A. (a)- B. (b)- C. Not enough information### Explanation:The diagram suggests a chemical reaction between benzene and DBr at low temperature, producing one of two possible structural isomers of a brominated, deuterated cyclohexene. The task is to use understanding of isotopic substitution and bromination mechanisms to predict the outcome given the specified conditions.

a) Alkynes react with excess HBr producing alkyl halides via carbocation formation mechanism. Please find below the reaction mechanism along with the major product formed. Hence the answer is option c. b) Conjugated alkenes reacts with DBr and undergo addition reaction via carbocation formation mechanism. In this reaction, at lower temperatures, the 1-2 addition reaction takes place and at higher temperatures, 1-4 addition reaction takes place. Since the temperature given is low, hence the 1-2 addition reaction will take place as shown below. Hence the answer is option A (a).