Answer:
The correct answer is letter "A": product life cycle.
Explanation:
Product Life Cycle is the period of time in which a product is conceived and developed, brought to market and later removed from the market. At first, the product is researched and developed. If it is deemed feasible ad potentially profitable, it is produced, marketed, and rolled out. If successful, the product is mass-produced until it is widely available. Eventually, demand will decline and the product becomes obsolete.
