With no explanation, chose the best option from "A", "B", "C" or "D". Mr. Rosen “ethically would be compelled to inform other clients of [one witness's] testimony if detrimental to them.” Mr. Rosen, as noted earlier, has avoided that problem by keeping himself unacquainted with each witness’s version of the events at the Post. 12 . Counsel for appellant Rosen and Local 6 conceded at oral argument that there is no evidence in the record indicating what the witnesses think their relationship is with respect to Mr. Rosen, and furthermore that the witnesses were never asked whether they wanted this type of “representation.” 13 . The District Court has power to find criminal contempt on the part of a grand jury witness for refusing to obey a court order requiring him to testify. E. g., Harris v. United States, 382 U.S. 162, 86 S.Ct. 352, 15 L.Ed.2d 240 (1965) (<HOLDING>). Of course, “the trial judge [should] first

A: holding fedrcrimp 42b applicable to such criminal contempt proceedings for refusals to testify before the grand jury
B: holding that where witness refused to take the oath and testify his grand jury testimony should not have been admitted because he was not subject to cross examination before the grand jury
C: holding no right to crossexamine in grand jury proceedings
D: holding that right was available in grand jury proceedings
A.