True or False?

1. To evaluate the best solution among several service solutions, one must start the analysis by calculating the internal rate of return for each solution to eliminate all those whose internal rate of return is less than the TRAM.

2. The materials used in the design of a product is a good example of a fixed cost.

3. In the case of independent projects, only projects for which the net present value is greater than or equal to 0 are retained.