Aproduct's life cycle is divided into four stages, which are:
a) introduction, growth, saturation, and maturity.
b) introduction, growth, stability, and decline.
c) introduction, maturity, saturation, and decline.
d) introduction, growth, maturity, and decline.
e) incubation, growth, maturity, and decline.

The correct option is: D) introduction, growth, maturity, and decline.

Explanation:

Product life-cycle refers to the various stages involved in the life-cycle of a product.  

There are four stages of product life-cycle:

1. Introduction: This stage involves launching a new product in the market.

2. Growth: This stage is characterized by strong growth in the sale and profit.

3. Maturity: This stage involves maintaining market shares.

4. Decline: This stage is characterized by decline in the sale and profit.

step 1: replication fork formation.

step 2: primer binding.

step 3: elongation.

step 4: termination.

explanation:

hope this !

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.