The answer is D
Explanation: You need to have the same number of complementary bases.
Restriction endonucleases cut DNA at specific sites, known as recognition sites, to produces DNA fragments useful for cloning. Restriction enzymes or restriction endonucleases are DNA cutting enzymes found in bacteria. Each restriction enzyme recognizes one or a few restriction sites. When it finds its target sequence, it makes a double stranded cut in the DNA molecule.
For the answer to the question above, I think the answer is that "Warm ocean currents influence London's climate."
For London is near the ocean and the warm temperature that comes from the ocean affects their temperature and even their surrounding country.
