An advertisement for a mutual fund or asset allocation service must not compare the performance of the mutual fund or asset allocation service with any benchmark or investment other than
(a) one or more mutual funds or asset allocation services that are under common management or administration with the mutual fund or asset allocation service to which the advertisement pertains;
(b) one or more mutual funds or asset allocation services that have fundamental investment objectives that a reasonable person would consider similar to the mutual fund or asset allocation service to which the advertisement pertains; or
(c) an index.