Suppose you observe the following occurrence. Answer which of the four properties A & B, A & C, B & C, C & D are eliminated as a sufficient condition for E ABCD Occurrence: PAPP A O 1.A & B, B & C O 2. A & C, C & D O 3. A & B, C & D O 4. A & B, A & C Suppose you observe the following occurrence. Answer which of the four properties A, B, C, D are eliminated as a necessary condition for E: ABCD E Occurrence: APPA P O 1. C, D O 2. B, C O 3. A, B O 4. A, D Suppose you observe the following two occurrences. Answer which of the four properties A, B, C and D can be a necessary and sufficient condition for E: ABCD E Occurrence 1: PAPA Occurrence 2: P P A A A O 1. C O 2. D O 3. A O 4. B