An alkene on ozonolysis gives methanal as one of the product. Its structure is :

Unbranched alkenes on ozonolysis give -

An alkene (A) on ozonolysis gives (B) as one of the product, (B) can perform Cannizzaro reaction.(A) is :

The alkene which on ozonolysis gives acetone is :

Among the following, the alkene on ozonolysis giving rise to only one aldehyde as the product is :

An alkene on ozonolysis gives only one product (Z) . Z on reaction with Fehling solution give red precipitate of Cu_(2)O . Alkene will be?