The counter-offer will terminate the original offer excepts:

i. where the counter-offer is accepted by the original offeror

ii.where the offeree merely requesting further information from the offeror iii.where the offeree send back the goods deliver under the contract

iv where the offeror do not know whether he is the original offeror or not.

a. i and ii

b. ii and iii

c. i and iii

d. ii, iii, and iv