Please help me solve this

Consider the following statements regarding the indifference curves of a worker to answer this question: I. Indifference curves could intersect, which leads to the same level of satisfaction. II. Indifference curves are convex. Ill. Indifference curves are negatively sloped. O A. II and Ill are correct O B. Only I is correct O C. I and Ill are correct O D. Only III is correct