Racket code only please    - primeTest It takes as input any positive integer n and returns true if the absolute value of the polynomial 8n2 − 488n + 7243 is a prime number. For example, the invocation (primeTest 5) should return true.    - primeTestSeq   This takes two arguments, a low bound and an upper bound. It determines what percentage of the integers between the lower bound and the upperbound are, according to primeTest, a prime number. For example, the invocation (primeTestSeq 1 60) should return 100.

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C-string

A string is a one-dimensional array of characters that can be terminated using a null character (‘\0’). The string or character array is used to manipulate the text such as words or sentences. The \0 (termination character) is the most important in the string as it is the only method to identify the end of the string. A string can be defined as a one-dimensional array of characters; whereas, an array of strings is a two-dimensional array of characters.