Which of the following words is closest in meaning to “Herald”?

Herald means a messenger; one who announces.

• Correct answer - courier: it has the same meaning as Herald.
• stalwart: loyal and hardworking - wrong, it does not mean the same as Herald.
• strong: powerful - wrong, it does not mean the same as Herald.
• dissident: a person who opposes official policy - wrong, it does not mean the same as Herald.