Apple said Thursday it expects revenue growth of up to 16 percent in the March quarter, exceeding forecasts on strong iPhone demand, a rebound in China, and faster momentum in India. The outlook follows a holiday-quarter earnings beat, with CEO Tim Cook describing demand for the latest iPhones as “staggering,” easing worries of a prolonged hardware slowdown.Apple said Thursday it expects revenue growth of up to 16 percent in the March quarter, exceeding forecasts on strong iPhone demand, a rebound in China, and faster momentum in India. The outlook follows a holiday-quarter earnings beat, with CEO Tim Cook describing demand for the latest iPhones as “staggering,” easing worries of a prolonged hardware slowdown.