Average clients change their interiors every years A.2 B.7 C.15 D.30?

Design clients and their needs are as unique as people in the world, so this is a tricky question.

For US businesses, furniture typically is expected to have a 10 year life, for tax purposes. For that reason, businesses will usually not change things too much during the first 10 years after a major space redesign unless they are physically relocating or have another major business shift that requires a change.

For homes, this timing can vary much more widely, depending on housing market conditions and whether they have desire to sell, as well as the personal tastes and needs of each client. If I were taking a quiz with this question, though, I'd guess C.15 years.