Answer:
The correct answers are the options A, B and C.
Explanation:
To begin with, if what the person is looking for is to gather information about the company HP, and more especifically about their resources, there are several actions that he can do in order to get all that information. For start, he can have an interview with the upper management in order to ask questions and obtain the preliminary answers to the information he is looking for and later use that info to make a survey good enough to gather more. Once all that is gathered together, what the person can do is to reasearch patents submitted by the company's engineers so in that way he might still increase the amount of info.