B is your answer to your question
Answer:
Dispersion is a statistical term that describes the size of the distribution of values expected for a particular variable. Dispersion can be measured by several different statistics, such as range, variance, and standard deviation.
The most commonly seen consequence of dispersion in optics is the separation of white light into a color spectrum by a prism. From Snell's law it can be seen that the angle of refraction of light in a prism depends on the refractive index of the prism material.
Explanation:
The kangaroo is famous animal from Australia.the kangaroo symbols Australia
It would help if i had your choices.. But I believe the answer is agriculture.