The second alternative is correct (B).
"Gold in California ignited interest in a railroad to reach the West. However, Americans disagreed on where to build the railroad."
The use of the conjunction "however" in this context connects the two sentences with a contraposition, giving the exact meaning for the continuity of the text. In this way, it became clear that there was a need to build a railroad, but there was no unity among Americans about where to build the railroad.
In Women Who Spoke Up, they had to fight as hard as they could to be heard or noticed by the government at the time. Women were always kept silent, they had no say in any activities except for chores at home or with children. When the 20th century came around, the women had enough. They spoke about any subject they wanted, no matter what the outcome was. They displayed their true emotions to the public to let everyone know that Women matter. Different kinds of jobs brought together women who had enough. Being in Slavery, journalism, even a labor activist had came with threatening to the women. They had enough, it was time for them to show women’s true colors.
I say
C.<span>refuge, inhabited, dog, mule</span>
