BITSAT 2024 Shift 1 Paper

Although CH3C=CH−CH=CH2 has two double bond but one of them has two similar atoms (i.e. H -atom) therefore no geometrical isomerism is possible around the double bond. However each carbon atom of other double bond has two different atoms/groups and hence geometrical isomerism is possible around this double bond.
Hence, only two geometrical isomers are possible.