Question: I want a complete solution 2. Write a PHP Program that include 3 functions to perform a. Function to find out the sum value for

I want a complete solution
2. Write a PHP Program that include 3 functions to perform a. Function to find out the sum value for the 4 marks Assume that Marks are 45,74,90,77 b. Function to calculate the average for the 4 marks c. Function to Test average and show the grade based on the table below
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