The 4Ps model has been challenged because it omits or underemphasizes important activities such as services. It's also been criticized for taking a seller's, rather than a buyer's, viewpoint. The more recent 4As framework complements the traditional model and includes . Group of answer choices adaptability, affordability, availability and awareness adaptability, affordability, accessibility and awareness acceptability, affordability, accessibility and aptitude acceptability, affordability, accessibility and awareness adaptability, affordability, availability and aptitude