B, a chemist, was employed by A, a manufacturer, to work on a secret process for A’s product under an exclusive three-year contract. A employed C, a salesperson, on a week-to-week basis. B and C resigned their employment with A and accepted employment in their respective capacities with D, a rival manufacturer. C began soliciting patronage from A’s former customers, whose names he had memorized. What are the rights of the parties in
(a) A suit by A to enjoin B from working for D, and
(b) A suit by A to enjoin C from soliciting A’s customers?