For the following reaction :
`(A) CH_(3)CH_(2)CH_(2)Br+KOH to CH_(3)CH=CH_(2)
`=KBr +H_(2)O`
which of the following statement is correct ?
A. (A) is elimination (B) and (C) are substitution reaction
B. (A) is substitution (B) and (C) are addition reaction
C. (A) and (B) are elimination reaction and (C) is addition reaction
D. (A) is elimination (B) is substitution and (C) is addition reaction
