• White clover (Trifolium repens) and Red clover (Trifolium pratense) are premier perennial temperate forage legumes adapted to cool, moist temperate climates and high-altitude temperate pastures (Himalayan hills).
• Napier grass (Pennisetum purpureum), Guinea grass (Panicum maximum), and Setaria grass (Setaria sphacelata) are tropical and subtropical warm-season C4 perennial forage grasses.
• Hence, White and red clover represent the temperate group, confirming Option 1.

Agronomic seed rate for fodder oat (Avena sativa):

• For cultivating fodder oat, the standardized recommended seed rate is $80-100\text{ kg/ha}$ (nominally $100\text{ kg/ha}$) when sown by line broadcasting or drilling.
• This high planting density produces dense tillering with succulent, thin-stemmed green forage of superior palatability and digestible crude protein content.