The correct option is B Oil
The conditions suitable for germination are as follows:
1) Presence of adequate water.
2) Presence of air or oxygen.
3) An ideal temperature range (i.e., between 25 °C to 35 °C).
4) Presence of light.
Droplets or a layer of oil is not a suitable factor as it will block the entry of oxygen, and the seed will not be able to produce energy for germination.