Which change must be made to this sentence to correctly indicate the subjunctive mood, a verb tense in which a doubt, wish, or condition that is not true is expressed? I don't know about you, but if I was a multimillionaire, I'd use my wealth to make the world a better place. A. Change "was" to "could be." B. Change "I'd" to "I would." C. Change "was" to "were." D. Change "was" to "be."

C. Change "was" to "were."

Explanation:

The subjunctive mood indicates a doubt. The verb were instead of was indicates a doubt.

It also indicates a wish , a demand or a suggestion which is contained in the second part of the sentence "I'd use my wealth to make the world a better place".

I'd use my wealth to make the world a better place; is correct

I would use my wealth to make the world a better place" is also correct

the difference of I'd and I would does not make any difference.

after the moon goes from a full moon it turns into a waning gibbous moon.

here's where my answer came from. i hope this .