Membrane permeability

Which of the following is true about the transportation of substances across the lipid region of the cell membrane?

(Choice A)
Small nonpolar molecules can freely dissolve across the lipid region of the cell membrane.
(Choice B)
Gases such as $N_{2}$ ‍, $O_{2}$ ‍, and ${CO}_{2}$ ‍ require embedded transport proteins to dissolve across the lipid region of the cell membrane.
(Choice C)
Polysaccharides can freely dissolve across the lipid region of the cell membrane.
(Choice D)
Ions can freely dissolve across the lipid region of the cell membrane.

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