Which of the relations below on the set of all people are equivalence relations? Determine the properties of an equivalence relation that the others lack (i. e. not reflexive, not symmetric, etc.) (a) {(a, b) | a and b are the same age} (b) {(a, b) | a and b have the same parents} (c) {(a, b) | a and b share a common parent} (d) {(a, b) | a and b have met} (e) {(a, b) | a and b speak a common language}

investment b is an ordinary annuity with $3,909.64 in the account after one year.

step-by-step explanation:

the answer would be d

straight away you can eliminate a and c because not all books contain a scientific skill because some may be fiction. c is also wrong because it saids that the only way children can learn is through books which is incorrect.

b is also wrong because reading can be a scientific skill but not always, therefore it is wrong which leaves you with d, the correct answer since it said that it can children learn.

hope this ! : 3

answer: your answer is a