For a molecule given select the correct statement (s).
`CH_(3)-CH=CH-CH=C=C=CH-CH=C=CH-CH_(3)`
A. It has only one optically inactive from, is its trans geometrical isomer.
B. It can show geometical and as well as optical isomerism.
C. Total stereoisomers possible is 4.
D. Two pairs of enantiomers are possible.