Answer:
a. Georgia O’Keeffe.
Step-by-step explanation:
Georgia O'Keeffe was an American artist more famous for her paintings that depict the landscapes of New york or New mexico and most of the time enlarged flowers. Her paintings show/reveal the minor details as major, the simple as immense.
The painting in the question is titled "City Night", a piece from a collection of more than twenty scenes showing New York City and its big skyscrapers. The painting shows a shining moon in between two huge architectural buildings, with their perfect straight lines of the building contrasting with the vast empty space of the sky. The painting depicts the presence of the modern era in its buildings, the minimalist presence of us humans amidst the huge structural architectures.