Can somebody help me to solve the question

Stock options and restricted stock.

Question: You recently spoke to a former classmate of yours who has worked for a start-up company since graduating from business school more than 10 years ago. She told that you that she expects to receive some type of stock-based compensation in the near future. She has heard that she might receive stock options or a grant of restricted stock, but she is unsure of the difference.

Required: Explain the differences between stock options and grants of restricted stock.