Given the following past returns for a stock:

2013 + 15%

2014 + 18

2015 + 30

2016 - 20

2017 + 10

Together, this stocks expected return and stand alone risk measure mean:

Select one:

a. there is a roughly 70% chance the actual return will be between - 8.02% and + 29.22%

b. there is a roughly 70% chance the actual return will be between + 8.02% and + 29.22%

c. there is a roughly 70% chance the actual return will be between - 3.41% and + 29.91%

d. there is a roughly 70% chance the actual return will be between + 3.41% and + 29.91%

e. there is a roughly 70% chance the actual return will be between - 8.62% and + 28.62%