Gina and John Are Fraternal Twins

Gina and John are fraternal twins. Which of the following statements best describes the likely timing of puberty for these siblings?

A) Gina will go through puberty about 2 years ahead of her brother.
B) Gina and John will reach puberty within only a few months of each other.
C) John will experience puberty about a year before his sister.
D) Gina will go through puberty as many as 3 years ahead of her brother.