What are `ul(A), ul(B),ul(C)` in the following reactions ?
(I) `(CH_(3)CO)_(2)Caoverset(Delta)ul(A)`
`II. CH_(3)CO_(2)H overset(HI)underset(Red P)toul(b)`
(III) `2CH_(3)CO_(2)H overset(P_(4)O_(10))toul(C)`
A. `{:(A,B,C),(C_(2)H_(6),CH_(3)COCH_(3),(CH_(3)CO)_(2)O):}`
B. `{:(A,B,C),((CH_(3)CO)_(2)O,C_(2)H_(6),CH_(3)COCH_(3)):}`
C. `{:(A,B,C),(CH_(3)COCH_(3),C_(2)H_(6),(CH_(3)CO)_(2)O):}`
D. `{:(A,B,C),(CH_(3)COCH_(3),(CH_(3)CO)_(2)O,C_(2)H_(6)):}`
