Your question asks what Brand Salience is.
Brand salience is how often and how easily customers think of the brand under various purchase or consumption situations
The reason why answer choice "B). is how often and how easily customers think of the brand under various purchase or consumption situations" is the correct answer because this gives the best definition of brand salience.
Brand Salience happens when a customer thinks about an individual's company, meaning that the company is going through the mind of the customer when buying a product. This is very important to businesses because if a lot of people are thinking about their company when buying products, then they would be making more money since their company is "known" by people that think about it.
For example, someone could be at a store looking to buy some shampoo, and the first thing that comes to their mind when they're at the store is "Old Spice". That would be an example of brand salience.
Brand Salience sparks the sales in their products when people know the brand and what they do.