Mark the Correct alternative in the following:
If 
then z4 equals
=i
z4= i4
=1
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13. Complex Numbers
1
2
3
3
3
3
3
3
3
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
3
3
3
3
3
3
4
4
4
4
5
6
7
8
9
10
11
12
13
14
15
16
16
16
16
16
17
18
19
20
21
22
23
24
25
26
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
3
3
3
3
4
5
6
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
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42
43
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