its in C

Define a word as a string that can only contain alphabetical characters. Given a string of multiple words, each word is separated by one or multiple spaces (' ') or tabs ('\t'). You are asked to count number of words and find the longest word. Input String text with a maximum length of 1000 characters, each word is 20 characters max. Output The number of words and the length of the longest word Example: Output Input Hello World This is a long sentence. Welcome to CS240 This is a test input U U NN - U Explanation: - In the 2nd example, the word "sentence." is not counted as a word since it contains a dot ('') - In the 3rd example, "CS240" is not a word since it contains both numbers and alphabetic characters