The correct option is (a) Tritica aestivum
To explain: Tritica aestivum (Wheat) (Species: Aestivum; Genus: Tritica); Musca domestica (House fly) (Species: Domestica; Genus: Musca); Oryza sativa (Rice) (Species: Sativa; Genus: Oryza); Glycine max (Soybean) (Species: Max; Genus: Glycine). It’s necessary that binomial nomenclature is written in italics with generic epithet starting with capital letter and specific epithet written in small letter.