Give an English sentence in the form "If." that is equivalent to each sentence. (a) Maintaining a B average is sufficient for Joe to be eligible for...

Give an English sentence in the form "If...then...." that is equivalent to each sentence.

(a)

Maintaining a B average is sufficient for Joe to be eligible for the honors program.

(b)

Maintaining a B average is necessary for Joe to be eligible for the honors program.

(c)

Rajiv can go on the roller coaster only if he is at least four feet tall.

(d)

Rajiv can go on the roller coaster if he is at least four feet tall.