Efficacy means “capacity for producing a desired result or effect” so i believe the answer would be D.
hope this helps!!
Answer:
Because the wind was blowing hard Susie's umbrella flew away
Explanation:
What is your question, you have not put anything?
Answer: I am writing to request permission for time off to be with my father for a day on January 1st. I will be held up because He wants to go see fireworks for new years. I will be done with my father in one week and I promise to get back to work immediately I am done.
Explanation:
