Which of the following statements accurately describes the structure of sphingosine?

• A. Sphingosine is a 20 carbon amino alcohol with a trans double bond derived from palmitate and glycerol.
• B. Sphingosine is an 18 carbon amino alcohol with a cis double bond derived from glycerol and serine.
• C. Sphingosine is an 18 carbon amino alcohol with a trans double bond derived from palmitate and serine.
• D. Sphingosine is a 16 carbon amino alcohol with a cis double bond derived from palmitate and serine.

Answer: (C)