Choose A, B, C, or D to indicate the sentence that best combines each pair of sentences in the following questions: My dad has a wide range of practical life skills. He can solve most problems by himself. 

• A. 
  If my dad had a wide range of practical life skills, he could solve most problems by himself. 
• B. 
  Because of having a wide range of practical life skills, my dad cannot solve most problems by himself.
• C. 
  Were my dad to have a wide range of practical life skills, he couldn't solve most problems by himself.
• D. 
  Without a wide range of practical life skills, my dad couldn't solve most problems by himself.