The chart below contains an introductory sentence for a short summary of the attached passage and two supporting details about the passage.
|Oral vitamin D supplements probably reduce asthma attacks.
|\(\bullet\) Asthma is a condition that involves respiratory problems.
|\(\bullet\) Oral vitamin D supplements did not cause any side effects among trial participants.
Which three of these sentences also express the most important ideas in the passage?
A. The trials included a variety of nationalities.
B. Many of the trial participants suffered from moderate to severe asthma.
C. All participants in the trials suffered from asthma.
D. Some participants in the trials suffered from respiratory illnesses other than asthma.
E. The Cochrane Review is ongoing and has not yet finished.
F. The authors of the Cochrane Review believe future studies should focus on patients with more serious levels of asthma.