Consider the following distributions for returns of stocks A and B. Which of the following portofolios are the most efficient? 1. 20% in Asset A and 80% in Asset B 2. 15% in Asset A and 85% in Asset B 3. 26% in Asset A and 74% in Asset B 4. 10% in Asset A and 90% in Asset B Consider the following distributions for returns of stocks A and B. Which of the following portofolios are the most efficient? 1. 20% in Asset A and 80% in Asset B 2. 15% in Asset A and 85% in Asset B 3. 26% in Asset A and 74% in Asset B 4. 10% in Asset A and 90% in Asset B