The correct answer is option 2: Three pairs. Mosquitoes have six legs in total, which are divided into three pairs. These legs act as their primary locomotory organs, allowing them to move around and land on different surfaces. Each leg of a mosquito is comprised of several segments and is covered in microscopic hairs that aid in their movement. These legs are also equipped with specialized adaptations, such as sharp claws for gripping surfaces and tiny receptors that help them detect vibrations and locate prey. In addition to their legs, mosquitoes also have wings that enable them to fly. It is important to note that the biting behavior of mosquitos is not directly related to their legs, but rather to their specialized mouthparts.