For propene at 298 K, the molar enthalpy of hydrogenation is ‒124.27 kJ mol ‒¹ and the standard enthalpy of formation is
Biologically, molecular bonding operates via hybridization and orbital overlap dictate geometry and reactivity. Thus Option NAT is appropriate since it satisfies bonding and stability criteria, reinforcing core concepts taught in chemistry.
Ref: Atkins and de Paula, Physical Chemistry, 11th Edition, Chapter 14, Molecular Structure and Bonding, discusses VSEPR, hybridization, molecular orbitals, dipole moments and spectroscopic properties explaining chemical bonding and reactivity.