Answer:
D. She knows that the lye she uses to make soap can also confirm whether the rock is gold.
Explanation:
In the text she says that if the rock is gold, it would not be harmed by the lye. This affects the plot because now they know that there will be a truthful possibility whether they found gold or not.
The correct answer is:
1. Colleges and Universities (4 year)
2. Community Colleges (2 year)
3. Carrier schools
4. International schools