Federal Rule of Civil Procedure 26(b)(4)(C) provides:
(C) Payment. Unless manifest injustice would result, the court must require that the party seeking discovery:
(i) pay the expert a reasonable fee for time spent in responding to discovery under Rule 26(b)(4)(A) or (B); and
(ii) for disc ...
Federal Rule of Civil Procedure 26(b)(4)(C) provides:
(C) Payment. Unless manifest injustice would result, the court must require that the party seeking discovery:
(i) pay the expert a reasonable fee for time spent in responding to discovery under Rule 26(b)(4)(A)…