According to the poet, what are the shortcomings of love?

“Love is Not All” by Edna St. Vincent Millay

Love is not all: it is not meat nor drink
Nor slumber nor a roof against the rain;
Nor yet a floating spar to men that sink
And rise and sink and rise and sink again;
Love can not fill the thickened lung with breath,
Nor clean the blood, nor set the fractured bone;
Yet many a man is making friends with death
Even as I speak, for lack of love alone.
It well may be that in a difficult hour,
Pinned down by pain and moaning for release,
Or nagged by want past resolution's power,

Question

According to the poet, what are the shortcomings of love?

“Love is Not All” by Edna St. Vincent Millay

Love is not all: it is not meat nor drink
Nor slumber nor a roof against the rain;
Nor yet a floating spar to men that sink
And rise and sink and rise and sink again;
Love can not fill the thickened lung with breath,
Nor clean the blood, nor set the fractured bone;
Yet many a man is making friends with death
Even as I speak, for lack of love alone.
It well may be that in a difficult hour,
Pinned down by pain and moaning for release,
Or nagged by want past resolution's power,

anonymous · Answer

It well may be. I do not think I would. 

Select one:
a. It does not provide the necessities of life
b. It only leads to hate
c. It interferes with duty
d. It can make us blind