Truth

Which of the following statements are always true? (Assume A and B are binary variables).

-- $P(A=1) \geq P(A=1,~B=1)$ $P(A=1) \leq P(A=1,~B=1)$ $P(A=1) = P(A=1,~B=1) + P(A=1,~B=0)$ $P(A=1,B=1) = P(A=1)P(B=1)$ $P(A=1~|~B=1) \geq P(A=1)$ $P(A=1~|~B=1) \geq P(A=1,~B=1)$