Below a word is given followed by three sentences which consist of that word. Identify the sentence/s which best expresses the meaning of the word. Choose option 5 (None of the these) if the word is not suitable in any of the sentences.

Upsurge

1. The country has seen a recent upsurge in protests.
2. His study also found that people who shopped frequently were more likely to make upsurge purchases.
3. Such activities are tests of upsurge, to see how much pain and misery you can withstand.