Which following assertions are true ?

Question

- unanswered 13C NMR is more sensitive than 1H NMR because of the 1.1% natural abundance of 13C nuclei. 13C nuclei have a ½ spin and can be detected in NMR, opposite to more abundant 12C nuclei. 13C NMR requires a different equipment and cannot be done on the same machine as 1H NMR. 13C NMR is not quantitative. 13C NMR experiments are usually carried out with broadband 1H decoupling in order to simplify spectra.