(March 15, 2023, 1:47 PM EDT) -- SAN FRANCISCO — Monsanto Co. on March 14 filed an answer in California federal court denying allegations that glyphosate, the active ingredient in the herbicide Roundup, causes cancer and contending that a cancer victim’s claims are barred because she cannot proffer any scientifically reliable evidence that Roundup is defective or “unreasonably dangerous.”...