Answer: b)by describing actions such as “seemed to look each of us in the eye"
Step-by-step explanation:
The author best reveal that Iqbal is courageous by describing actions such as “seemed to look each of us in the eye".
This can be deduced from the lines "He took the knife that we all used to cut the ends of the knots, raised it above his head, and seemed to look each of us in the eye."
When one is courageous, they tend to look at others in the eye. Someone who's shy will try to avoid the gaze of others.