Multifidene is a sperm-cell-attracting substance released by the female of a species of br...

Multifidene is a sperm-cell-attracting substance released by the female of a species of brown algae. It has the constitution shown.

Assuming that the double bond in the five-membered ring of all of the isomers is cis:

(a) How many stereoisomers are represented by this constitution?

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(b) If the substituents on the five-membered ring are cis to each other, how many stereoisomers are represented by this constitution?

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(c) If the butenyl side chain has the Z configuration of its double bond, how many stereoisomers are possible?

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(d) Draw stereochemically accurate representations of all the stereoisomers that satisfy the structural requirements just described.

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(e) How are these stereoisomers related? Are they enantiomers or diastereomers?