Answer:
A) evaluating a solution
Step-by-step explanation:
When we try to produce a technological project many problems and difficulties can occur. These problems can hamper the success of the project and turn all dedication into failure. For this reason, it is important for researchers to be quick to identify problems and solve them.
An example of this can be seen in the question above, where Sally and Juan are trying to solve the problem of their planes. They do not know what is causing the problem and are therefore evaluating a solution, in order to continue the project.