With no explanation, chose the best option from "A", "B", "C" or "D". Castro’s treating physician report is outside the scope of his treatment of Plaintiff, and thus, Defendant’s request to strike Dr. Mundo’s letter report is hereby GRANTED. Now, moving on to the analysis of whether Plaintiff suffers from an actual disability, “[i]t is well established that the determination of whether a plaintiff has a disability must be made on a case-by-case basis.” Calero-Cerezo, 355 F.3d at 20 (citing Toyota Motor Mfg., Ky., Inc. v. Williams, 534 U.S. 184, 198, 122 S.Ct. 681, 151 L.Ed.2d 615 (2002); Sutton v. United Air Lines, Inc., 527 U.S. 471, 483, 119 S.Ct. 2139, 144 L.Ed.2d 450 (1999)). “It is insufficient for individuals attempting to prove disability status ... to merely submit evidence of a medical diagnosis of an impairm hools, 461 F.3d 932 (7th Cir.2006) (<HOLDING>). In the case at hand, Plaintiff argues that

A: recognizing sleeping as major life activity
B: holding that reproduction is not a major life activity
C: holding that breathing is a major life activity within the contemplation of the ada
D: holding that whether depression gives rise to a substantial limitation on a major life activity for purposes of ada depends on its severity
D.