. [5 points] Let A and B denote arbitrary finite sets. For each of the following two claims, determine whether it is always true (no matter what the finite sets are) or sometimes false (for certain particular sets). If you circle always true, then you must give a detailed proof. If you circle sometimes false, then you must give a counterexample, that is, give a concrete pair of finite sets A and B (list their elements) and briefly explain how the sets you gave demonstrate that the claim can be false. Claim 3a. A-Bl = IAI-BI. Circle always tru sometimes false Claim 3b. If (A - B)C (B - A), then AC B. Circle always true sometimes false Screenshot