Please need a specific answer!!

Based on the following table: Marks Grade 90-100 A 80-89 B 70-79 C 60-69 D Less than 60 F a) Write a PHP script to identify a student grade. Your script must use switch keyword, comparative and logical operators. b) Write the script output that print the grade (i.e., A or B) based on the marks (e.g., $mark =80). Answer:

a) Write a PHP script to identify a student grade. Your script must use switch keyword, comparative and logical operators. b) Write the script output that print the grade (i.e., A or B) based on the marks (e.g., $ mark =80 )