For the following reactions :
(A) CH3CH2CH2Br + KOH → CH3CH = CH2 + KBr + H2O
Which of the following statements is correct?
(1) (A) is elimination, (B) and (C) are substitution reactions.
(2) (A) is substitution, (B) and (C) are addition reactions.
(3) (A) and (B) are elimination reactions and (C) is addition reaction.
(4) (A) is elimination, (B) is substitution and (C) is addition reaction