Answer:
O A. frequency.
Explanation:
Intensity is how stressful the thing is while duration is how long it lasts. Stress is just what it is, and frequency is how often it repeats itself, that is, the rate at which it repeats. Every time it repeats it has its intensity and duration.
I think it’s C, but it could possibly be B
Answer:
Maturation is the development of the individual through growth processes. It is controlled by internal biological factors. ... A child's learning to walk may be attributed to maturation because the child learns to walk when reaching a particular stage in development.
Explanation: