Final answer:
The beta of the stock is 1.33.
Step-by-step explanation:
To determine the beta of a stock, we need to compare its returns to the returns of the market as a whole. In this case, the stock consistently goes down by 1.6% when the market portfolio goes down by 1.2%. This means that the stock's beta can be calculated as the ratio of the stock's returns to the market returns. We can calculate this as follows:
Beta = (Stock Return / Market Return) = (-1.6% / -1.2%) = 1.33
Therefore, the correct answer is c. 1.33.