Read the poem below and answer the question.

women
by alice walker

they were women then
my mama’s generation
husky of voice—stout of
step
with fists as well as
hands
how they battered down
doors
and ironed
starched white
shirts
how they led
armies
headragged generals
across mined
fields
ditches
to discover books
desks
a place for us
how they knew what we
must know
without knowing a page
of it
themselves.

the poem above is an example of

a. blank verse
b. free verse
c. iambic pentameter
d. a sonnet