​Retailers do not find it profitable to engage in promotional activities because

A) ​They reap the full benefits of the promotion
B) They have to share the benefits of the promotion with the manufacturer
C) They are unaware of competing retailers' ability to "free ride" on their efforts
D) ​All of the above

Promotional Activities

Efforts designed to inform, persuade, or remind potential buyers about a business's products or services, often to boost sales or brand awareness.

Free Ride

Benefit received without contributing to the cost of its production, often resulting in under-provision of goods or services if too many consumers opt to not pay.

Reap Benefits

To gain or receive advantageous outcomes or rewards from a particular action or investment.