His wife begged him not to drink too much ...............he would be driving them home after the party.a.asb.whetherc.therefored.so

To choose the correct answer for the given sentence, let's analyze the options within the context of the sentence.

1. Understanding the Context: The sentence suggests a causal relationship whereby the wife's plea relates to his responsibility of driving after drinking.

2. Relevant Concepts:

   • The conjunctions and their meanings:
     • a. as: indicates a cause or reason.
     • b. whether: introduces alternatives, typically used in indirect questions.
     • c. therefore: indicates a conclusion based on prior facts.
     • d. so: indicates a result or consequence.

3. Analysis and Detail:

   • The phrase "His wife begged him not to drink too much" sets up a plea based on the consequence of drinking: he would be driving them home. The logical connector should reflect this cause-effect relationship.
   • Using "as" would imply a reason, which is valid but not as direct.
   • "Whether" does not follow logically as it suggests alternatives or conditions.
   • "Therefore" would indicate a conclusion rather than a plea.
   • "So" fits well, suggesting that because of the need for him to drive, she is making the plea.

4. Verify and Summarize:

   • The choice of "so" directly correlates with the cause-effect relationship presented. It indicates that because he will be driving them home, his wife is asking him not to drink too much.

Final Answer

The correct conjunction is d. so. The complete sentence reads: "His wife begged him not to drink too much so he would be driving them home after the party."