1 point let (z +) denote the groups of all ntegers under addition, then the number of all automorphism of (z, +) is c.3 d. 4 a. t b. 2 o a ob oc od 0 points if

1 point Let (Z +) denote the groups of all ntegers under addition, then the number of all automorphism of (Z, +) is C.3 D. 4 A. T B. 2 O A OB OC OD 0 points If aH is a coset in G, then a) a must belong to aH c) a can't belong to aH b) a can't belong to Ha d) a must belong to aH but not in Ha O A O B Oc O D