Answer: User the insert screen recording control
Step-by-step explanation:
Since Ishmael wants to capture a selected potion of his screen l, after which he'll then capture the action that he performs on that selected portion, he should use the insert screen recording control.
It should be noted that on most keyboards, there's an "insert screen" button. Also, Ishmael can simply open the window that he wants to screenshot and then click the screenshot button.
Therefore, the correct option is B.