Answer:
B. complete a certification from a professional organization
Step-by-step explanation:
Option A can get Vincent in-hand experience. So, it cannot be the answer.
Option B can immediately boost his career in the intended direction because a certification program at a professional level can enhance his capability.
Option C is wrong because without completing the four-year degree, he cannot do an internship.
Option D can be the answer, but two-year is a long-term study and cannot boost his career quickly.
Option E is wrong because he is doing an internship in the field of accounting.