Answer:
The correct option is A: Standardization
Explanation:
Standardization is a method used in research for gathering and treating participants for a particular study. It is used when the result of one group is to be compared with the result of a second group, and hence each group must be given equal opportunities to succeed. This process is often lengthy. Bob used this sample of children because he wanted standardization.
Ophidiophobia is the fear of snakes, glossophobia is the fear of public speaking or of just speaking, acrophobia is fear of heights, musophobia is the fear of rats and mice, and aviophobia is the fear of being in flying transportation.
Answer:
have inadequate production of the enzyme lactase