English morphological rules detail how words relate to other words. Thus, my best assumption would be because BOLDEST is an adjective whereas BOLDLY is an adverb.
Answer:
El Greco's work established a foundation for the development of Cubism, a movement in which artists began to abandon a single viewpoint perspective to play with geometric shapes and interlocking planes.
Answer:
Under the Wave off Kanagawa
Explanation:
Under the Wave off Kanagawa is a section of the Thirty-six Views of Mount Fuji. Its produce by Hokusai from 1830 to 1833. It is a coloured woodblock print. The print features a look of the mountain (Mount Fuji) with waves and fishing boat. The wave created before crashing down on to a fishing boat in print.