Most products in the marketplace are in the stage of the product life cycle. a) growth
b) development
c) decline
d) maturity
e) introduction

D. Maturity stage

Explanation:

Most products in the marketplace are in the maturity stage of the product life cycle.

There are four stages in the product life cycle:

1. Introduction stage: This is the stage where awareness is created about a new product in the market. Consumers are made to the aware of a new product by advertisement and marketing.

2. Growth: After awareness has been created for the product, there is an increase in firms expansion and demand.

3. Maturity: This is a stage where firms realise more profits due to

reduction in cost of production and marketing.

4. Decline: When the firm start making more peofits, other firms will join the industry leading to competition. This may lead to the product declining if it can't compete in the industry.

what are the sentences? so we can answer the question.

the answer is account d