Determine whether the following pair of sets is equivalent. Justify your answer. {x: x is a letter in the word cat} and {x: x is a letter in the word scar} Are the sets equivalent? OA. No, the two sets do not have any of the same elements. OB. Yes, the two sets consist entirely of letters. OC. No, the two sets have a different number of elements. OD. Yes, both sets are subsets of larger sets.