Answer:
because its also take a plural form
The correct answer is a.Holding her note cards, the woman stepped up to the microphone ready to give her speech..
That is because it is the most grammatically acceptable sentence of all the ones mentioned here as it has both the proper syntax and proper punctuation.
<span>
[She] had kindled the callow fancy of the most idle and shiftless of all
the village lads, and had conceived for this Howard Carpenter one of
those absurd and extravagant passions which a handsome country boy of
twenty one sometimes inspires in a plain, angular, spectacled woman of
thirty. (Willa Cather, "A Wagner Matinee")
</span>