The answer to this problem is c
Answer:
As you fall, it pulls you toward the earth, or in the case of cliff diving, toward the water, at a speed of 32 feet per second per second (9.8 meters per second per second).
Explanation:
Charles Martel was the Frankish ruler where he defeated the Islamic Umayyads and saved Europe
they both are considered to be a part of development. in most cases there will be a number of failure before number of success is achieved.