What is the output of the given code?

length=gets.chomp
case length.reverse.length
when length=4
print "length is 4"
when length=5
print "length is 5"
end

A. case B. while C. for D. if

A. while B. until C. for D. do...while

A. Executes code if condition is true B. Executes code if condition is false C. Breaks out of loop if condition is true D. Executes code only once if condition is true

A. To define a class B. To handle multiple conditions with one expression C. To declare a variable D. To perform mathematical calculations