Choose the sentence that uses "affect" correctly?

• A. The weather will affect the results.
• B. The weather will effect the results.
• C. The results will affectly.
• D. The weather affect the results.

Answer: (A)

The concept being tested is the correct use of affect as a verb. In this sentence, weather is doing the influencing, so you need the verb form that means “to influence.” The future tense is shown with will, so the base form affect follows, giving The weather will affect the results. This clearly means the weather influences or changes the results.

The other options don’t fit because they misuse the word forms or grammar. Using effect as a verb is not standard here, and the sentence would sound off or change meaning. A word like affectly isn’t a real word, and The weather affect the results lacks the auxiliary will and correct agreement.