Assertion : At a fixed temperature, silicon will have a minimum conductivity when it has a smaller acceptor doping. Reason : The conductivity of an intrinisic semiconductor is slightly higher than that of a lightly doped $p$-type

• A

  If both assertion and reason are true and reason is the correct explanation of assertion
• B

  If both assertion and reason are true but reason is not the correct explanation of assertion
• Correct answer
  C

  If assertion is true but reason is false
• D

  If both assertion and reason are false.

Hence, the correct answer is option: 'C'.