Researchers conducted a study to examine the effect of vitamin C on the duration of the common cold. They gave 30 research participants with the common cold a 2,000-milligram supplement of vitamin C for each day of their cold; 30 participants with the common cold did not receive the
supplement. The researchers recorded the length of time for which cold symptoms persisted in each group. The results are shown in the
two-way table. When a force is applied to the end of a column of confined liquid (Figure 2-4, view B), it is transmitted straight through to the other end and also equally
Vitamin C Supplement
Which conclusion is supported by the table?
OA Treatment with vitamin C is unrelated to the duration of the common cold.
OB. Vitamin C causes the length of a cold to decrease.
Treatment with vitamin C is associated with a decrease in the duration of the common cold.
OD
Vitamin C increases the duration of the common cold in most individuals.