Please answer all questions

1		Only red blood cells originate in the red bone marrow.
			A)	True
			B)	False
2		During the inflammatory reaction, histamine and kinins cause capillaries to constrict and become less permeable.
			A)	True
			B)	False
3		When B cells undergo clonal expansion, they produce plasma cells and also memory B cells.
			A)	True
			B)	False
4		Human leukocyte-associated (HLA) antigens are unique to each individual.
			A)	True
			B)	False
5		Passive immunity differs from active immunity in that passive immunity is long-lived.
			A)	True
			B)	False