Answer:
Option D is correct one.
Company X has a lower coefficient of variation than Company Y.
Step-by-step explanation:
This is because company X has a lower standard deviation of returns than Company Y. Coefficient of variation = standard deviation/mean*100. Also mean of X will be higher as its expected return is higher than Y. So, the numerator (standard deviation) is lower and denominator (mean) is higher in case of X. This will lower its coefficient of variation than Company Y.