Which of the Following Statements About Electrocyclic Reactions Is True

Multiple Choice

Which of the following statements about electrocyclic reactions is true?

A) An electrocyclic reaction is generally irreversible.
B) Generally,an acyclic triene is favored over a six-membered ring at equilibrium.
C) Generally,a four-membered ring is favored over an acyclic diene at equilibrium.
D) An electrocyclic reaction is generally reversible.