Answer: C: intensity I think..
Explanation:
Because:
A: Speed doesn't really have anything to do with the sun and visual light
B: Wavelength Is the distance between the waves.
D: Amplitude is the height of the wave
so out of all the answers it should be C: Intensity
I think
He was kidnapped by his father's servant.
Answer:
C. On the way to the city of Riga