Which of these contains the most authoritative data on health and wellness?

a.) a magazine article
b.) a government study
c.) a social media survey
d.) a diet advice book

Which of these is most likely to prevent pregnancy? a. tracking of female body temperature to identify ovulation times b. proper condom use c. male withdrawal before ejaculation d. proper spermicide use

What is the healthiest serving of meat

The benefits of cardiovascular exercise include a improved hearing b reduced depression c reduced appetite d decreased stamina