Which of the senses does dorothy wordsworth mainly write about in this entry from her journal?

the purple-starred hepatica spreads itself in the sun, and the clustering snow-drops put forth their white heads, at first upright, ribbed with green, and like a rosebud when completely opened, hanging their heads downwards, but slowly lengthening their slender stems.

a.
taste
b.
sound
c.
smell
d.
sight