Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.
"When did you start practising yoga?” asked Tom.
A.Tom wanted to know when I was starting practising yoga.
B.Tom wanted to know when did I start practising yoga.
C.Tom wanted to know when I had started practising yoga.
D.Tom wanted to know when had I started practising yoga.