Which statement best describes a difference between saturated fats and unsaturated fats?
A. Unsaturated fats tend to have higher melting points because they have only single carbon-carbon bonds, which allow the molecules to be straight.
B. Unsaturated fats tend to have lower melting points because they have at least one carbon-carbon double bond, which causes the molecule to bend.
C. Unsaturated fats tend to have lower melting points because they have only single carbon-carbon bonds, which allow the molecules to bend.
D. Unsaturated fats tend to have higher melting points because they have at least one carbon-carbon double bond, which causes the molecule to be straight.