With no explanation, chose the best option from "A", "B", "C" or "D". (5th Cir.1995); Jones v. Greninger, 188 F.3d 322, 324-25 (5th Cir.1999). Finally, Treece insists that the district court’s imposition of the three-strikes bar was unconstitutional. Carson v. Johnson, 112 F.3d 818, 821 (5th Cir.1997). As this court has already considered and upheld the constitutionality of § 1915(g), this issue is foreclosed. See Carson v. Johnson, 112 F.3d 818, 821 (5th Cir.1997). As Treece fails to challenge on appeal the district court’s rejection of his claims that prison officials conspired to deny him his constitutional rights, committed the offense of battery of the infirm or elderly under Louisiana law, and discriminated against the elderly in violation of federal law, such claims are deemed abandoned. See Yohey v. Collins, 985 F.2d 222, 224-25 (5th Cir.1993) (<HOLDING>). Treece also has moved for leave to supplement

A: holding that issues must be briefed to be preserved on appeal
B: holding issues not adequately briefed on appeal are abandoned
C: holding that issues not briefed to this court generally will not be considered on appeal
D: holding that issues not briefed on appeal are deemed abandoned
A.