Which complex ion has cis and trans isomer ?

Cis and trans isomers generally

Consider the following reaction and statements- [Co(NH_(3))_(4)Br_(2)]^(+) +Br^(-) to [Co(NH_(3))_(3)Br^(3)]+NH_(3) [i] Two isomers are produced if the reactant complex ion is cis-isomer. [ii]Two isomers are produced if the reactant complex ion is a trans-iosmer. [iii] Only one isomer is produced if the reactant complex ions is a trans-isomer. [iv] Only one isomer is produced if the reactant complex ion is a cis-isomer. The correct statements are-

Four statements for the following reaction given below [CoCl_(2)(NH_(3))_(4)]^(+) to [CoCl_(3)(NH_(3))_(3)]+NH_(3) (P) Only one isomer is produced if the ractant complex ion is a trans isomer (Q) Three isomers are produced if the reactant complex ion is a cis isomer (R ) Two isomers are produced if the reactant complex ion is trans isomer (S) Two isomers are produced if the reactant complex is cis isomer The correct statements are :

Draw cis and trans isomers of hex-2-ene