For the following cases explain whether you would prefer a for or a while loop Objectives #$1]$:

a$.$ Double every value in a list.

b$.$ Find the dot product of two lists.

c$.$ Count all values in a list equal to $2.$

d$.$ Minimize the amount of concrete needed for a retaining wall.

e$.$ Find all of the prime numbers less than $1$E$6.$

f$.$ Allow a user three guesses to pick a random number.