Men and women were asked which type of animal they thought made the best pets. Data are in the table below.

Reptiles Mammals Birds

Men 24 35 20

Women 15 47 1 2

If the expected frequencies rule for chi-square had been violated by the data, which categories could be combined together in a meaningful way to increase the expected frequencies?

A. It depends on the research hypothesis

B. Reptiles, mammals, and neither

C. Men and women

D. Reptiles and mammals

What is the Correct answer and why?