Masco is the name of a well-recognized company in the construction industry. It produces cabinetry, furniture, lighting, and plumbing fixtures for the upper-end homeowner and builder. One of the divisions of Masco is the Delta Faucet Company, which is the leader in the faucet industry. Delta was founded in 1955 . Over the decades, it has developed a legacy based on well-crafted, high-quality

products. Since the 1970s, Delta has focused its energies on building loyalty with the builder marketplace. Research in 2002 showed that while builders respected the Delta faucet for its quality, durability, and dependability, household consumers were not enamored with Delta products.
Due to the number of new magazines and television programs devoted to home style, homeowners wanted faucets that were chic and stylish. This was not the image of the Delta faucet. To change its image, Delta began a marketing program in which it committed itself to developing new products to appeal to homeowners. It adopted a new slogan––"Beautifully Engineered.". Since Delta was already marketing to homeowners (although not very successfully), its development of new styles of faucets to appeal to this underserved market would be an example of a _____ strategy.
a. market penetration
b. product diversification
c. market development
d. product development
e. product penetration

d