In order complete the reaction
1-Pentyne`undersetato`4-Octyne`oversetbto`cis-4-Octene, a and b will be
(1)`{:(a,b,),(NaNH_2,CH_3CH_2Br,:H_2,"(one mole )Pd or Ni"):}`
(2)`{:(a,b,),(NaNH_2,CH_3CH_2CH_2Br,:H_2,"(two mole )Pd or Ni"):}`
(3)`{:(a,b,),(NaNH_2,CH_3CH_2CH_2Br,:H_2,"(one mole )Pd or Ni"):}`
(4)`{:(a,b,,),(NaNH_2,CH_3CH_2CH_2Br,:BH_3,H_2O_2,OH^(-)):}`
A. 1
B. 2
C. 3
D. 4
