At what stage of the PLC do marketers increase product promotion to cope with increasing competition?

introduction stage of PLC

Explanation:

PLC denotes the product life cycle.

PLC includes the stages: introduction, growth, maturity, decline

Marketers increase product promotion to cope with increasing competition at the time of the introduction stage to create customer awareness and to stimulate primary demand. At this stage, large investment costs result in the development of the product.