Why is the sky blue and doesn't change color

The statement is false because the sky can change colors during sunsets, sun rises, etc. The sky is not always blue.

this allows people to make the best decision or pursue the best option. when alternatives are weighed using their advantages and disadvantages, the option whose disadvantages outweigh the advantages (based on a qualitative or quantitative analysis) are shunned while those whose advantages outweigh their disadvantages are pursued.