Question #N413

The author of this passage is making a case for the importance of learning a second language.

Which choice best completes the text so that it conforms to the conventions of Standard English?
A. For instance, the ability to communicate in a second language can open doors to new career opportunities.
B. For instance, the ability to communicate in a second language can open doors to new career opportunities, and it can also help people to understand different cultures.
C. For instance, the ability to communicate in a second language can open doors to new career opportunities; it can also help people to understand different cultures.
D. For instance the ability to communicate in a second language can open doors to new career opportunities it can also help people to understand different cultures.