Final answer:
The correct option is a, b, d). Complementing offering techniques involves building a foundational product, making additional offerings pertinent and relevant to the customer's initial purchase, and being assumptive in suggesting complementary products. Monopolistically competitive firms can increase demand for their products by focusing on product quality, customer service, innovation, loyalty programs, and community outreach.
Step-by-step explanation:
When discussing key complementing offering techniques that businesses can use, some strategies include: Build the foundation, Making it pertinent, and Being assumptive. Building the foundation refers to creating a base product or service that customers need and value. Making the offering pertinent means ensuring that any additional products or services complement the initial purchase in a way that is relevant and enhances the customer's experience. Being assumptive involves the sales strategy of assuming that the customer will naturally require the complementary product or service, which encourages a seamless addition to their purchase.
To increase demand for their products, monopolistically competitive firms can implement various strategies aside from advertising. These might include improving product quality, offering excellent customer service, innovating new products, implementing loyalty programs, or engaging in community outreach. These strategies help create a distinct brand identity and encourage customer loyalty, which can lead to increased demand for a firm's products or services.