Unbranched hydrocarbons are also called straight-chain hydrocarbons. Which of the following is true of unbranched hydrocarbons?

A) The C-C-C bond angle is 180° in unbranched hydrocarbons.
B) Each carbon atom is connected to not more than two other carbon atoms.
C) The C-C-C bond angle is 180^o in unbranched hydrocarbons and each carbon atom is connected to not more than two other carbon atoms.
D) None of these.