The following compound undergoes photochemical ring closure. 
 
Why are the encircled substituents trans to one another after the photochemical ring closure?

• A. The encircled substituents are trans to one another in the product because the reactant would undergo a disrotatory ring closure causing substituents that point in the same direction to be trans to one another.
• B. The encircled substituents are trans to one another in the product because the reactant would undergo a conrotatory ring closure causing substituents that point in the same direction to be trans to one another.
• C. The encircled substituents are trans to one another in the product because the reactant would undergo a conrotatory ring closure causing substituents that point in the opposite direction to be trans to one another.
• D. The encircled substituents are trans to one another in the product because the reactant would undergo a disrotatory ring closure causing substituents that point in the opposite direction to be trans to one another.

Answer: (C)