i think its D
if I got it wrong sorry . if you fuss with me i will be more than happy to argue
Hope i got it right*
Answer:
A. reserved for another time
Explanation:
The phrase "left in midair" as used in the passage means that something was left undone and pending, waiting for when next it would be used.
According to the passage, a deal was uncompleted, and because of that, and because a compromise could not be reached, it was "left in midair" which means that it was reserved for another time.
C, both of these.
Hope this helps!
I would say the passage is mostly about smell receptors
