Arnold gesell a. foreshadowed lifespan research by writing a book on aging b. constructed the first successful intelligence test c. is generally regarded as the founder of the child study movement d. was among the first to make knowledge about child development meaningful to parents

The correct answer is letter D. It is because Arnold Gesell is the first person who was able to share and make knowledge regarding child development in which was considered to be meaningful to the parents as this allows the parents to be informed of what they are to expect in each of the respective age of the child.

swahili is an extremely rich and complex civilization, a set of ethnic groups articulated by a language and a series of cultural elements that fuse the african traditions, islam and indian culture. this growth was largely a result of the indian ocean trading network that brought in not just man-made riches, but also religious ideas, specifically islam, which had a significant impact on the local culture. furthermore, the development of the swahili language gave a common cultural unity to the people.