Answer:
c. Recommend.
Step-by-step explanation:
The use of the word "demand" in his speech exudes a strong sense of authority and control over the students and what they can and cannot do. Though the issue is about a health threat that comes from drinking "large amounts of soft drinks", there is no need for a strong authorized di k tat.
In place of the word "demand", Dean Robert Strickler can instead use "recommend", which gives a much more relaxed attitude yet still send a strong message to the students to 'not' consume large amounts of soft drinks for health reasons.
Thus, the correct answer is option c.