Did the positions of Johnson and Thomas helped Houston become
the training location?

ummm? is that supposed to be a question or a but this is a reason he won re-election

explanation:

"despite progress in the war, lincoln and most political pundits were convinced that he would lose his bid for reelection in 1864. the country was war weary and the democratic party's nominee, george mcclellan, was likely to negotiate a peace treaty with the confederacy if elected." - loc.gov

what are local authorities doing to fix the problem

explanation:

c, because the american revolution was from 1765 to 1783.