can someone please help me with these? Thanks in advance!!

14.39 Identify each of the C4H10O isomers on the basis of their 13CNMR spectra: (a) 618.9(CH3) (two carbons) 530.8(CH)(onecarbon)569.4(CH2)(onecarbon) (b) 5.0.0(CH3) 522.7(CH3)532.0(CH2)569.2(CH) (c) 5.31.2(CH3) (three carbons) 568.9(C)(onecarboo) 14.40 A compound (C3H7ClO2) exhibited three peaks in its 19CNMR spectrum at 546.8(CH2).5.63.5(CH2), and 572.0(CH). Excludine componinds that have Cl and OH on the same carbon, which ate unstable, what is the most reasonable structure for this compound