Which piece of evidence would be relevant to the claim “Mulligan’s T-shirts has the best prices in town”? The other store in town charges 25% more for the same designs; Mulligan’s t-shirts are more expensive than the ones on the internet; There are several different cuts of t-shirts available; Mulligan’s offers more colors than any other store)

The relevant piece of evidence to support the claim “Mulligan’s T-shirts has the best prices in town” would be: The other store in town charges 25% more for the same designs.

This evidence directly compares Mulligan's prices to those of a competitor, suggesting that Mulligan's offers better pricing for the same products, which substantiates the claim. The other points, while they offer information about variety and comparisons to internet prices, do not directly support the assertion about Mulligan's pricing being the best in town.