Consider the series One-fourth, StartFraction 1 Over 16 EndFraction + StartFraction 1 Over 64 EndFraction + StartFraction 1 Over 256 EndFraction + ellipsis Which expression defines Sn? Limit of (one-fourth) Superscript n Baseline as n approaches infinity Limit of (1 minus (one-fourth) Superscript n Baseline) as n approaches infinity Limit of one-third (1 minus (one-fourth) Superscript n Baseline) as n approaches infinity