Final answer:
Alfred Lord Tennyson was deeply affected by the death of a college friend and wrote the famous philosophical poem "In Memoriam" in the friend's memory.
Step-by-step explanation:
The correct answer is A. Alfred Lord Tennyson. Tennyson was deeply affected by the death of a college friend and wrote the famous philosophical poem "In Memoriam" in the friend's memory. This poem is considered one of Tennyson's greatest works and is a reflection on grief, loss, and the struggle to find meaning in the face of death.