One month after Deraj Jewelers purchases ten new diamond$-$cutting machines, the director of operations gathers the ten most senior jewelry artists to ask them about their experiences with the new machines. He wants to know if the machinery is functioning as promised and if the artists are pleased with the purchase. Which step of the B$2$B buying process does this situation reflect?

Multiple Choice

Step $3$: Potential suppliers are researched.

Step $7$: A postpurchase review is conducted.

Step $6.$ The order is placed.

Step $4$: Requests for proposal are sought