Efficacious Answer

If you chose “C,” you’re correct!

Efficacious means effective.

Click here to hear the pronunciation:

https://coolwordclub.com/wp-content/uploads/efficacious.mp3

Now, go ahead and use the word “efficacious” in a sentence of your own and submit it below. If it’s one of the most creative sentences we receive, we’ll publish it here! Here’s a reminder of how we use the word “efficacious.”