What is the product of the epoxide opening reaction under basic conditions shown below?

Question

Quizplus · Accepted Answer

In the reaction, the epoxide ring is opening by the nucleophile -OH, leading to the formation of a diol. The product should have two hydroxyl (-OH) groups attached to the carbon atoms that were previously part of the epoxide ring.  Among the four choices available, only choice B has two hydroxyl groups attached to the right carbons (C1 and C2), making it the correct product.

What Is the Product of the Epoxide Opening Reaction Under