Select question 11.Regarding the joints of the thorax, the following are synovial joints1) Manubriosternal2) Sternoclavicular3) 2nd to 7th Sternochondral4) Xiphisternala) 1, 2, 3b) 1, 3, 4c) 1, 2, 4d) 2, 3☆×12025