Fill in the blank with the most appropriate option
 

You must ______ your career with all seriousness.

Pursue 

The most appropriate word to fill in the blank is pursue.

The other options are not as accurate. Direct suggests that you should take charge of your career, but this is not the only thing that is necessary. Complete suggests that you should finish your career, but this is not what the sentence is describing. Follow suggests that you should simply follow the path that has been set for you, but this is not the best way to achieve success. Pursue is the best option because it suggests that you should actively work towards achieving your goals in your career.