Which of these are not part of the pectoral girdle?

1 Ulna 2. Femur 3. Humerus 4. Radius

a) only 1 and 2nd

b) only 1 and 3rd

c) only 1 and 4th

d) only 1 , 3rd and 4th

Please ask the question once again. Bones of pectoral girdles are clavicle and scapula. As per my understanding to your question I can say that femur is the one you can exclude if the question is about part of pectoral girdles and its associated appendages.