Which of the following serves as the socket for articulating head of the femur with the coxal bone?

The acetabulum is a deep, cup-shaped socket located on the lateral aspect of the coxal/hip bone where the head of the femur (thigh bone) articulates to form the hip joint. It allows for a wide range of movements, including flexion, extension, abduction, adduction, and rotation of the hip joint, which are essential for activities such as walking, running, and sitting. 

Glenoid cavity of scapula accommodates the humerus.

Occipital condyle helps in articulation of the skull with the vertebral column.

Coccyx is the tail bone in the vertebral column.