Final answer:
J.P. Morgan decided to invest heavily in Edison's electric power venture.
Step-by-step explanation:
During the conversation between J.P. Morgan and Thomas Edison, Morgan decided to invest heavily in Edison's electric power venture. In 1882, Morgan provided financial backing to Edison and helped create the Edison Electric Illuminating Company, which supplied electrical current to customers in New York City. Morgan's investment in Edison's company led to the subsequent mergers and the creation of the Edison General Electric Company.