Four boxes of various masses are placed on a friction

free table. Rank these boxes according to net force
by listing them in order from greatest to least.

A) <-5N--| 5 kg |--10N->

B) <-10N--|10kg|-15N-->

C) <-10N--|5kg|-15N-->

D) <-5N--|20kg|-15N-->

Thank You :)

I forgot to include:
Which one has the most force to the right?

I appreciate it! :]