This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to pack a preschooler's bag for an airplane trip
First, get a small, portable backpack on wheels for the toddler to carry and a larger bag.
Get 5 pairs of trousers and 5 tops for every week your going.
If it's a girl, get some tights and dresses and 4 jumpers.

OPT:
A). Choose a two liter soda bottle for every day you will be traveling. Some popular, cheap choices are plastic copps, kinko's, or chuppy's..
B). Stuff all shoes with socks to save space. Get only a few, comfortable shoes..
C). If it's a boy, get some tights and t-shirts. Finally, buy all the preschoolers handbags for the trip..
D). Also pack 2 pairs of pajamas, extra socks, gloves and an extra jumper. Start walking and packing as states require preschoolers when travelling..
The answer is:
B).