Charles works as a marketer at Microsoft. He has just spent the last few weeks collecting information about environmental forces that will impact computer industry. The time has come to try and make sense of this data and gather insights which he hopes will improve the company's marketing strategy in relation to competitors. Which type of activity is Charles working on$?$

a$.$ Competitive scanning

b$.$ Environmental scanning

c$.$ Technology assessment

d$.$ Environmental analysis

e$.$ SWOT analysis