The sentence about the status of women in Jane Austen’s time that is trueis option C, "marriage was the only means for women to gain social mobility."
In Jane Austen's England, women were oppressed victims of a patriarchal society, subordinate first to their fathers and, then, to their husbands who had been chosen by their fathers.
Jane Austen was an English novelist known mainly for her six major novels, which interpret, critique and comment about the British landed gentry at the end of the 18th century.
The context is what is in the book, such as the plot, character, conflict and theme. So knowing this you can know what is going on through the book and are able to relate with characters and form an opinion.