Once stocks are on the market which best explains how their prices are set

At the utmost basic level, supply and demand in the market manage stock price. Price times the amount of shares leading (business capitalization) is the value of a business. Analyzing just the share price of the two organizations is trivial.

The market is the wide collection of investors and merchants who buy and sell the stock, driving the price higher or dropping. The final purpose of purchasing shares is to produce wealth by purchasing stocks in organizations you suspect to do great, those whose noticed value (in the order of the share price) will increase.

d is the best answer for this question.

there were abundant sources of fuel nearby