Answer :
The reason that a single issue, anti-slavery platform is a catalyst in regards to ushering a new political party was because of the reason that the people in the north are not concerned with profits or having to gain profits that can be obtained with slave labor and that they are likely to engage into having people to gain freedom that they deserve. The correct answer is letter b.
The correct answer is: B. The anti-slavery platform would be a catalyst for the start of a new political party because people in the north were less motivated by the gains of slave labor and more interested in freedoms for all people. The Republican Party early in 1856 won with John C. Freemont eleven northern states on a platform against slavery.