(C PROGRAMMING ONLY) 1. Leap Year Detector by CodeChum Admin Let’s try to find out whether a year has 365 or 366 days. To do this, we need to create a leap year detector!   Conditions for a leap year: 1.) year must be divisible by 4 and not divisible by 100 2.) If year is divisible by 100, it must be divisible by 400 for it to be a leap year.   Instructions: You are provided with the isLeapYear() function which is already declared and defined for you. Your task is to ask the user for a year and then call the isLeapYear function to check whether the year is a leap year or not. Input 1. Year to be checked Output If a certain year is a leap year, print " is a leap year" Otherwise, print " is not a leap year" Enter year: 2020 2020 is a leap year

3. Spirometry is a test of lung function that measures how much and how quickly (volume and flow) the air movement in and out of the lungs. The measurements are made using an instrument called spirometer, which can provide the following parameters: i. Forced expiratory volume in one second (FEV1) ii. Forced vital capacity (FVC) These parameters can be used to make a diagnosis and to determine the severity of chronic obstructive pulmonary disease (COPD), an obstructive respiratory disorder characterized by airflow limitation and inflammation. It happens when the ratio of FEV1 to FVC is less than 0.70. The spirometric classification of COPD severity based on FEV1 is given in Table 5. Table 5. Spirometric classification of COPD severity. Condition / Severity Normal Mild COPD Moderate COPD Severe COPD Very severe COPD FEV1/ FVC > 0.70 FEV1 > 0.80 0.50 –- 0.79 < 0.70 0.30 - 0.49 <0.30 You are required to develop a program used by a medical practitioner to analyze the condition of few group…