Genes are small sections of
A. Protein
B. Cells
C. Ribosomes
D. DNA

D.) DNA

Explanation:

A gene is a short section of DNA. Your genes contain instructions that tell your cells to make molecules called proteins. Proteins perform various functions in your body to keep you healthy. Each gene carries instructions that determine your features, such as eye colour, hair colour and height.

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.