Read the following text from a biography. This excerpt is about photographer Edward Curtis. Indeed, Curtis replied, he had thought about doing something grand and consequential. "The idea dawned on him that here was a wide field as yet unworked," Grinnell wrote. "Here was a great country in which still lived hundreds of tribes. . . . Would it not be a worthy work, from the points of view of art and science and history, to represent them all by photography?" . . . As for the late-afternoon thunderheads, twirls of dust devils and biting flies drawn to horse flesh and the softer human kind—who could complain? Push on, Curtis urged, push on. He'd been promised much more than a peek: a chance to witness the Sun Dance, the oldest and most important religious ceremony to the Piegan, Bloods and related tribes. . . . Any inconvenience was a trifle compared to what lay ahead.

From Timothy Egan, Short Nights of the Shadow Catcher: The Epic Life and Immortal Photographs of Edward Curtis. Copyright 2012 by Timothy Egan.

Based on this excerpt, what can you conclude about photographer Edward Curtis? Curtis earned a lot of money photographing the Sun Dance. Curtis thought it was important to photograph the Sun Dance. Curtis had photographed many ceremonies before the Sun Dance.​