Which of these statements is true?

Multiple Choice

When people purchase a stock, they know exactly what their dollar and percent return are going to be$.$

Many people purchase stocks as they find comfort in the certainty for this safe form of investing.

When people purchase a stock, they know the short$-$term return, but not the long$-$term return.

When people purchase a stock, they do not know what their return is going to be$-$either short term or in the long run.