Answer: the letter C and D represents chambers of heart
Explanation:
D represents right ventricle
Ok I don't know what chart it is (that would really help) but the global population is around 7 billion not 80 million so unless the chart is from a long time ago (when the population was smaller) I'd go with B. The global population is about 80,000,000
A is the right answer.
To make it make sense:
The earth is big, but is really small compared to Jupiter or the sun. The solar system is a lot bigger than earth, but it fits inside our galaxy (along with millions of other solar systems, and billions of other planets). Galaxies are huge, but in our universe, there's 2 trillion of them.
A 90 degree clockwise rotation switches the numbers in the x and y places and makes x negative, for example, the coordinate (3,4) rotates 90 degrees clockwise and becomes (4,-3), or using a formula, A (x,y) -> A' (y,-x)
