he poetic line ‘Tis better to have loved and lost than never to have loved at all’ appears in:

The correct option is Alfred Tennyson’s “In Memorium A.H.H.”.

Explanation:
The famous poetic line, "’Tis better to have loved and lost than never to have loved at all," is a key quotation from Alfred Lord Tennyson's elegiac poem titled In Memoriam A.H.H., which was published in 1850.
The line appears specifically in Canto 27 of the poem. Tennyson wrote this monumental work to express his deep grief and process the sudden death of his close friend and fellow poet, Arthur Henry Hallam (A.H.H.), who passed away unexpectedly in 1833 at the age of 22.
Through these lines, Tennyson reflects on the pain of grief and concludes that despite the intense suffering caused by the loss of a loved one, the experience of loving and being loved is valuable enough to justify the subsequent sorrow.