The two isomeric compounds below are naturally occurring insect pheromones. The isomer on the left attracts the male olive fruit fl y; the one on the right, the female. 

(a) What kind of isomeric relationship exists between these two structures? 

(b) What functional group is contained in these molecules? 

(c) Both of these compounds are hydrolyzed under aqueous acidic conditions. Draw the products. Are the product molecules from the two starting isomers the same or different?