Question

which statement primarily appeals to logos to support the position that wearable fitness trackers can improve peoples health?
i have been wearing a pedometer for several months, and knowing how far i am walking each day has brought about an increase in my cardiovascular fitness.
as so much about our bodies is unknown to us throughout the day—such as heart rate and blood sugar levels—it follows that increasing awareness of these factors will give us helpful insights into how to improve our health.
imagine seeing your step count at the end of each day, feeling triumphant when you hit a lofty goal and determined to work harder when you fall short.

Explanation:

Logos is an appeal to logic, using reasoning or evidence. The first option is a personal anecdote (appeal to ethos or pathos). The third option uses imagery and emotion (pathos). The second option reasons that since we don't know body factors, tracking them (via fitness trackers) gives insights to improve health, using logical deduction.

Answer:

B. As so much about our bodies is unknown to us throughout the day—such as heart rate and blood sugar levels—it follows that increasing awareness of these factors will give us helpful insights into how to improve our health.