In the sentence provided, "There are several ways to spot a fake dollar bill," the word that best means "discover something hidden" is C. spot.
Here's why:
1. Spot in this context means to notice, detect, or identify something, especially something that is not easily seen or hidden.
2. When you "spot" a fake dollar bill, you are finding or uncovering it among other bills, indicating the action of discovering something hidden or not immediately apparent.
3. In everyday language, people commonly use "spot" to refer to noticing something that is not obvious at first glance, making it a suitable word to mean discovering something hidden in the given sentence.
Therefore, the most appropriate word from the options provided to mean discover something hidden in the sentence is C. spot.
