Yes this is true. Both Egyptian Kings and Egyptian deities were depicted as the same size in Egyptian art. This is because Egyptian artists used a hierarchy of scale to represent status and importance in their society. Because Egyptian Kings were often seen as earthly forms of deities (ex. In the 5th dynasty the Pharaoh was commonly believed to be the son of sun god Ra, and the name was incorporated into the Pharaoh's legacy) they were somewhat equal to their divine counterparts which is why they were depicted as the same size in Egyptian art!
For more information on Egyptian art, see: https://www.khanacademy.org/humanities/ancient-art-civilizations/egypt-art/beginners-guide-egypt/a/e...
I believe the best answer for this question is D, "rhythm." Let us consider what each of these terms mean. "Focal emphasis" means the element that draws your attention the most. "Contrast" involves elements that are very different from each other, usually juxtaposed together to create an effect. "Rhythm" means repetition, arrangement, or flow. "Composition" means the way something is composed. Hope this helps.