The Self-Unseeing
by Thomas Hardy

Here is the ancient floor,
Footworn and hollowed and thin,
Here was the former door
Where the dead feet walked in.

She sat here in her chair,
Smiling into the fire;
He who played stood there,
Bowing it higher and higher.

Childlike, I danced in a dream;
Blessings emblazoned that day;
Everything glowed with a gleam;
Yet we were looking away!

What is theme of the poem?

A.
Let the past be the past.
B.
Look before you leap.
C.
Memories provide opportunities for gratitude.
D.
Necessity creates appreciation for simplicity.