Answer:
The statement "wasn't college an investment" is a rhetorical question because it's more of a statement of fact than an interrogative statement. As such the speaker isn't looking for an answer, but is instead making a point.
I hope this helps. If it doesn't I could probably explain further.
Gulliver using his glasses as a shield in a military operation while the Blefuscudians shot arrows at Gulliver's face and neck in Jonathan Swift’s Gulliver’s Travels. This situation described as an ironic situation because Gulliver did not defend his face and neck from the arrow. He rather defends his eyes using the glasses.
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B. To develop a character or characters - APEX