The underlined verb is 'is observed.' The form of that verb is B. passive.
Active form would be 'People observe the National Yo-Yo Day...' Imperative form is giving commands, so it would be something like - Please go and observe that! Subjunctive form would be - If I were you,I would observe...
Answer:
This would not be considered an effective analogy because the two topics being discussed do not have any similarities.
Probably to change mind through humor and exaggeration. :)
