Consider three statements
$p:$ Person $‘A’$ passed in mathematics exam
$q:$ Person $‘A’$ passed in physics exam
$r:$ Person $‘A’$ passed in chemistry exam
Then, the statement $~\left(\left(~\left(p\Rightarrow q\right)\right)\Rightarrow r\right)$ is equivalent to

• Correct answer
  A

  Person $A$ passed only in mathematics among mathematics & physics & chemistry.
• B

  Person $A$ failed only in mathematics among mathematics & physics & chemistry.
• C

  Person $A$ passed in all the three subjects mathematics & physics & chemistry.
• D

  Person $A$ passed in chemistry but failed in mathematics & physics.

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