Marge uses the mark "X" in Arizona. Lisa uses the mark "2X" in Arizona. Marge sues Lisa for trademark infringement. At trial, Marge proves that consumers familiar with "X" are likely to be confused by "2X." What effect will this have on Marge's dilution claim against Lisa based on these marks? a) No effect (b) Summary judgment for Lisa ( c) Marge's consumer confusion claim bars her dilution claim ( d) Summary judgment for Marge