Please show how you can calculate the index. Table below:

An analyst gathers the following information for an equal-weighted index comprised of assets Able, Baker, and Charlie: Security Able Baker Charlie Beginning of Period Price () 10.00 20.00 30.00 End of Period Price () 12.00 19.00 30.00 Total Dividends () 0.75 1.00 2.00 The total return of the index is A. 5.0%. B. 7.9%. C. 11.4%