The core idea
Bond prices fall when market yields rise because an existing bond's fixed cash flows become less attractive relative to newly available bonds. Its price must decline until the return available to a new buyer is competitive with prevailing yields.
What is happening underneath
Suppose a bond pays a fixed $50 annual coupon. If comparable new bonds begin offering higher returns, investors will not normally pay the same price for the old $50 cash flow. A lower purchase price raises the old bond's effective yield.
How investors should read it
Duration indicates how sensitive the price is likely to be. Longer-duration bonds generally experience larger percentage price changes for the same movement in yield.
The same market move can carry different information depending on which maturity, issuer and risk premium is changing. Read the question together with the underlying concepts rather than treating one price move as a universal signal.