Answer:
A. Nature as a source of spiritual nourishment
Step-by-step explanation:
Ode on melancholy best fits the tenets of romanticism of "nature as a source of spiritual nourishment". There are different tenets of romanticism but the ode to the nightingale supports but this tenets on the basis of the innate goodness and the innocence in the human beings. The use of the imagery are done which helps in the description of the tenet of romanticism in a precise and the adequate manner.