The following statements describe different types of enzyme activities:
A. DNA polymerase III synthesizes DNA in the 5'-3' direction and has 3'-5' exonuclease activity.
B. Topoisomerase I cleaves both strands of DNA to relieve supercoiling.
C. RNase A cleaves single-stranded RNA molecules at specific sites.
D. T4 polynucleotide kinase transfers a phosphate group to the 5' end of a DNA or RNA molecule.
Which option represents a combination of all correct statements?
1
A, C, and D
2
B and C
3
A and D
4
A, B, and D