Water takes a longer time to freeze than alcohol and can absorb a large amount of heat with only a small change in its temperature. True
False

answer; the above statement is (true);

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.

true, i don't really know what you're asking but from the info you provided im guessing the answer is true.