Nathan is conducting a portfolio analysis for his company. Which of the following activities would this involve?
A) studying the products and strategies of competitors in order to improve the company's own products
B) collecting consumer feedback in order to better position the company's products in the minds of consumers
C) evaluating the attractiveness of an SBU's market and the strength of its position in the market
D) segmenting the company's markets to effectively reach the target consumers
E) conducting marketing research to estimate the efficiency and effectiveness of the company's marketing strategy