If Sample class has a Length property with get and set accessors then which of the following statements will work correctly?$1$Sample.Length $=20$;Sample a $=$ new Sample;$=.$ Length $-10$;Console. MriteLine$($Sample Length$)$;Sample a $=$ new SampleD;int len;len $==$ Length;Sarole a $=$ new Sample;.Length $=$ m$.$Length $+20$;O a $13$O b$.245$O c$.4$ onlyO d$.3,5$