Answer:
a. Smaller class size is related to better academic performance.
Explanation:
A hypothesis is a testable prediction, a scientific guess of what you expect to happen from a study. There are directional and non directional hypothesis, the directional hypothesis states exactly what you expect such as " smaller class size is related to better academic performance while a non directional hypothesis predicts that there will be an effect but does not specify the direction, example is "smaller class size is related to academic performance".
The option chosen is an example of a directional hypothesis, option b, c, and d are more statements of facts and not hypothesis.
It contributed to the rise of the mongol empire. It also the first empire that had people able to ride horses, shoot with bows and move around.
The Olive Branch Petition<span>, 1775. The </span>Olive Branch Petition<span>, drafted on July 5, 1775, was a letter to King George III, from members of the Second Continental Congress, which represents the last attempt by the moderate party in North America to avoid a war of </span>independence<span> against Britain.</span>