SAT English Practice Question

The team members wanted to make their research relevant to as wide an audience as possible. One of the members of the research team noted that, because of the way they had designed their research, the team’s findings were only useful to those who already had a strong background in the field of research. "Our results can be applied to many other situations, but only if people know a lot about what we already know, which is a problem," she said. The team members decided to adjust their research methods to make the results more accessible.

1. A.but only if people know a lot about what we already know, which is a problem."
2. B.but only if people know a lot about what we already know, which is a problem.
3. C.but only if people know a lot about what we already know which is a problem.
4. D.but only if people know a lot about what we already know; which is a problem.