Understanding a target customer base allows a company to a. write a marketing plan that is effective for a product, regardless of consumer characteristics b. develop products that are more desirable and cheaper than the competition c. develop and market a product that is desired by all possible consumers d. create a marketing strategy that is tailored for a particular group of consumers

Consider a treasury bill with a rate of return of 5% and the following risky securities: security a: e(r) = .15; variance = .0400 security b: e(r) = .10; variance = .0225 security c: e(r) = .12; variance = .1000 security d: e(r) = .13; variance = .0625 the investor must develop a complete portfolio by combining the risk-free asset with one of the securities mentioned above. the security the investor should choose as part of her complete portfolio to achieve the best cal would be a. security a b. security b c. security c d. security d