With no explanation, chose the best option from "A", "B", "C" or "D". heavy burden in justifying viewpoint-based restrictions in a designated public forum. Cf. Church on the Rock v. City of Albuquerque, 84 F.3d 1273, 1279 (10th Cir.1996) (involving religious expression). Oklahoma City’s sole justification for the restriction is that it wants to avoid the appearance of taking sides in political and social advocacy arguments. (Defendants’ Motion at 23.) While avoiding the appearance of governmental bias on certain issues is a compelling government interest that may justify restrictions on speech in a designated public forum, Rosenberger, 515 U.S. at 836, 115 S.Ct. 2510, Oklahoma City’s restriction is not necessary to serve this interest. As long as Oklahoma City provides equal access, there is no bias. Cf. Rosenberger, 515 U.S. at 836-845, 115 S.Ct. 2510 (<HOLDING>). Furthermore, the ordinance is not narrowly

A: holding that the endorsing requirement does not violate the establishment clause
B: holding that tax exemption for church property does not violate establishment clause
C: holding that providing equal access to a designated public forum for citizens engaging in religious expression and citizens engaging in secular expression does not violate the establishment clause
D: holding that establishment of christmas day as legal public holiday did not violate establishment clause
C.