Which of the following vessel is not present in subclavian triangle?
Subclavian triangle contains 

Third part of subclavian artery and subclavian vein 
Suprascapular artery and vein 
Commencement of transverse cervical artery and termination of the corresponding vein 
Lower part of external jugular vein
Suprascapular artery
Occipital artery
III part of subcavian artery
External jugular vein