Fill in the blank with the most appropriate word.
You told me that you would be careful. You said to me, "__________"
The two ways of relating what a person has said are 1)direct and 2)indirect (reported speech).In direct speech, the original speaker's exact words are repeated. In indirect/reported speech, the exact meaning is expressed but not necessarily using the original speaker's exact words. Pronouns and possessive adjectives usually change from first or second person to the third person except when the speaker is reporting his own words. Sometimes a noun can be inserted to avoid doubt.
When we turn direct questions and exclamations into indirect speech, they are converted to affirmative statement .( ? and ! is not used).
Option C is correct as when we convert the given indirect speech to direct, would is changed to will and you to I.
The other options are wrong as you will, you would cannot be used and would is missing respectively..
The correct answer is C)I will be careful