What might convince an investor to buy stock or mutual funds?
a belief that a company has just reached its peak popularity
b news that a stock's price has recently increased significantly
c belief that a small number of investors have bought the stock so far
d news that a company is about to release a promising product

The correct answer is D) news that a company is about to release a promising product.

The reason that might convince an investor to buy stock or mutual funds is "news that a company is about to release a promising product."

Smart investors are cautious when its time to invest their money but at the same time they are not afraid to invest in a risky scenario when the product seems good and the interest paid is attractive. Smart investors like to diversify its portfolio in order to gain more money from different sources and securing their positions. None of them are going to bet all their money in just one product. So the reason that might convince an investor to buy stock or mutual funds is "news that a company is about to release a promising product."

must repent and believe in god.

or the book

journey across time - chapter 10 "the rise of christianity"

c, because the american revolution was from 1765 to 1783.