What helps marketers understand how much customers are willing to pay for a product or service, and it can also be used to influence how customers perceive the brand?

A. pricing
B. marketing
C. advertising
D. promotions

A. pricing

is this right

Yes, "pricing" is the correct answer. Pricing strategies can help marketers determine how much customers are willing to pay for a product or service, and it can also influence how customers perceive the brand in terms of quality, value, and exclusivity.