Which of the following is an advantage of a log-periodic antenna?

A log-periodic antenna (often called a Log-Periodic Dipole Array or LPDA) is constructed with multiple driven elements of gradually increasing lengths. As the operating frequency changes, the 'active' resonant region of the antenna smoothly shifts from the shorter elements (at higher frequencies) to the longer elements (at lower frequencies). Because of this design, the primary advantage of a log-periodic antenna is its exceptionally wide bandwidth, allowing it to cover continuous frequency ranges or multiple amateur bands with a single feed line and consistent impedance. While it looks similar to a Yagi, a Yagi only has one driven element and achieves higher gain by sharply tuning its parasitic elements to a single narrow band. The log-periodic sacrifices this peak gain in favor of broadband performance.