In which of the following options, the molecules are correctly matched with their atomicity ?

Options

A. (1-s),(2-r),(3-p),(4-q)
B. (1-q),(2-s),(3-p),(4-r)
C. (1-q),(2-s),(3-r),(4-p)
D. (1-s),(2-r),(3-q),(4-p)