Which bone connects the pelvis to the tibia?

The femur is the correct choice because it is the long bone located in the thigh that connects the pelvis to the tibia, which is the larger bone of the lower leg. At the upper end, the femur articulates with the acetabulum of the pelvis, forming the hip joint. This connection not only supports the weight of the body but also allows for a range of movements including walking, running, and jumping.

The radius and ulna are bones in the forearm, while the fibula, although it is part of the lower leg, does not connect directly to the pelvis. Instead, it runs parallel to the tibia and primarily provides stability to the ankle. Understanding the roles of these bones helps clarify how the femur serves as a crucial structural component in the lower body, linking the pelvis with the tibia.