You examine a 24-year old pregnant woman with a history of mild intermittent asthma at 24 weeks gestation for an acute asthma flare. Her medication regimen should be adjusted to include
A) titration to a therapeutic theophylline level
B) addition of timed salmeterol (Serevent) use
C) a short course of oral prednisone
D) use of montelukast (Singulair) on a regular basis