Which Sentence correctly shows how the apostrophe is used to form a contraction?

The missing notebook contained all of the teacher's information for the field trip.

Molly's options for the courses to study next semester are unlimited.

Fred noted it's a poor time to plant spring flowers until after the last frost.

The storms arrival on Friday will bring much-needed rain.

Fred noted it's a poor time to plant spring flowers until after the last frost.