please help me with these 2 questions! 1) Generally, lipid molecules are able to diffuse across a plasma membrane rapidl

[answerhappygod]

please help me with these 2 questions!
1) Generally, lipid molecules are able to diffuse across a plasma membrane rapidly, while water soluble molecules cross much more slowly. What is one potential reason why? (Choose the best answer)
a) Plasma membranes contain carbohydrates
b) Cytoplasm contains no water
c) The interior of the phospholipid bilayer is hydrophobic
d) Lipid molecules are smaller
2) Butane is to a nonpolar covalent bond as table salt (NaCl) is to a/n
a) ionic bond
b) nonpolar bond
c) tertiary bond
d) hydrogen bond