The chemicals which are "pro-life" with reference to human beings

Options

A. Are regarded as sone of the most significant discovery of twenty first century
B. Have rarely contributed to human welfare
C. Are produced by some plants and all animals
D. Can kill or retard the growth of disease micrboes

Answer

D

Explanation

Pro - life chemicals are antibiotic which can kill or retard the growth of disease - causing microbes.