Correct Answer: Devious

Solution : The correct choice is the third option.

Forthright means direct, honest, and straightforward in speech or action whereas devious means showing a skillful use of underhanded tactics to achieve goals, not being straightforward or honest.

The meanings of the other options are:

• Motivated: It means enthusiastic and driven towards goals.
• Upfront: It means being open and honest in communication and dealings.
• Outspoken: It means expressing opinions openly and candidly.

Therefore, the correct answer is devious.