Representatives from the two firms are currently （） the middle of negotiations concerning a possible joint venture.

A:in B:on C:at D:within

Representatives from the two firms are currently （） the middle of negotiations concerning a possible joint venture.

A:in B:on C:at D:within

Representatives from the two firms are currently （） the middle of negotiations concerning a possible joint venture.

A:in B:on C:at D:within

According to the passage, drug company representatives

A:have received $250 to $500 a call. B:have done nothing but listen. C:are supervising the tone of the conferences. D:are trying to meet their expectations.

Representatives from the two firms are currently （） the middle of negotiations concerning a possible joint venture.

A:in B:on C:at D:within