A South Korean research group has isolated and synthesized "daumone," the pheromone that induces hibernation in Caenorhabditis elegans worms when food becomes scarce, thus extending their life span (Nature, 2005, 433, 541). Following is a ball-and-stick representation of daumone.

a. What is the absolute configuration, R or S, of the stereogenic carbon marked with an asterisk?
b. There are four additional stereogenic carbons in daumone. Locate these carbons and determine their absolute configurations.
c. Draw a representation of the enantiomer of daumone.
d. Do you think the enantiomer of daumone would induce hibernation in Caenorhabditis elegans worms? Why or why not?