If the options are metaphor, alliteration, allusion, and apostrophe, I believe the answer is metaphor, because the others don't fit.
Alliteration is the repetition of a consonant.
Allusion is reference to something or somebody outside of that literary work.
And apostrophe is the author speaking directly to somebody outside the poem, usually gods or a muse.
There are several options for the turning point. When Macbeth listens to and decides to kill Duncan fulfilling the prophecy. However, in Act III, Scene IV, when Macbeth sees the ghostly figures at the dinner. This is the ultimate moment when Macbeth realizes that there is no way out of his nightmare.
Grandpa is lying in a hammock in the backyard.
B. lying - lie means to recline
lay - means to put down
Hope this helps.