Read this poem:

Shall I compare thee to a summer's day?
Thou art more lovely and more temperate:
Rough winds do shake the darling buds of May
And summer's lease hath all too short a date:

Sometime too hot the eye of heaven shines,
And often is his gold complexion dimm'd;
And every fair from fair sometime declines,
By chance, or nature's changing course untrimm'd;

But thy eternal summer shall not fade
Nor lose possession of that fair thou owest;
Nor shall Death brag thou wander'st in his shade
When in eternal lines to time thou growest;

So long as men can breathe or eyes can see,
So long lives this;—and this gives life to thee.

What type of poem is this?
A. Sonnet
B. Sestina
C. Haiku
D. Ode