Characterize EACH of the Three Given Statements as Being TRUE

Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) IUPAC names for cycloalkanes that have one substituent do not have any numbers in them.
(2) Both propane and cyclopropane are gases at room temperature and pressure.
(3) Halogenation of an alkane is an example of a substitution reaction.

A) All three statements are true.
B) Two of the three statements are true.
C) Only one of the statements is true.
D) None of the statements is true.