Taryn is hosting a party at a restaurant. The restaurant is charging her $140 to rent the space and $16 per guest. If Taryn wants to spend less than $540, which inequality could be used to solve for x, the number of guests Taryn can invite?

A.
$16x - $140 < $540
B.
$16x < $540
C.
$16x < $140
D.
$16x + $140 < $540