When a customer has a negative experience or feels unappreciated, they are more likely to switch brands, and a company has to work hard to counteract a negative experience. How many positive reviews does it take to counteract one negative, unresolved customer issue?Question $18$ Answera$\mathrm{.}15$b$\mathrm{.}10$c$\mathrm{.}12$d$\mathrm{.}8$