What issue did the Court consider in Matrixx Initiatives, Inc. v. Siracusano?

a. The Court reviewed the scienter of Siracusano in the case.

b. The Court examined whether Matrixx elected not to disclose the reports of adverse events with the drug Zicam because they understood their likely effect on the market thus meeting the materiality requirement under Section 10(b) of the Securities Act of 1934.

c. The Court determined whether the drug Zicam caused anosmia.

d. The Court studied the FDA approval of Zicam as a drug.