Based on empirical evidence, which type of companies generally earn the highest returns?

A. Small cap, value stocks

B. Small cap, growth stocks

C. Large cap, value stocks

D. Large cap, growth stocks

E. Firms with low s

The answer is A. However, I understand this. What is a small cap and large cap stock? What is a value stock and what is a growth stock? What is a Large cap Growth and Large cap Value stock. What is a Small cap Growth and Small cap Value Stock? What does it mean when a firm have Low Beta or Small Beta. Which companies would generate high or small returns?

Please assist.