Refer to the Following Figure:

the Hilton Hotel Chain $$D _ { \text {Business } }$$

Multiple Choice

Refer to the following figure:

The Hilton Hotel chain serves both business and vacation travelers.
$$D _ { \text {Business } }$$ and
$M R _ { \text {business } }$ represent the demand and marginal revenue for business travelers, while
$D _ { \text {vacation } }$ and
$M R _ { \text {Vacatin } }$ are the demand and marginal revenue for vacation travelers.
-What is the profit-maximizing number of BUSINESS travelers to serve?

A) 50
B) 100
C) 150
D) 200
E) 300