If one strand of DNA has a sequence 5' ATC TCG CAG CCA 3', what will be the sequence of its complimentary strand?

Responses

5' ATG ACG GCA GGT 3'
5' ATG ACG GCA GGT 3'

3' TAG CAT GCA GGT 5'
3' TAG CAT GCA GGT 5'

5' TAG AGC GTC GGT 3'
5' TAG AGC GTC GGT 3'

3' TAG AGC GTC GGT 5'

The correct answer is: 3' TAG AGC GTC GGT 5'