Answer:
a.on a horse
Step-by-step explanation:
Since 1970, Annie Leibovitz has built her career with stunningly beautiful photos of celebrities at different times, with a certain air of vulnerability. His images gained prominence on pages and covers of magazines like Rolling Stone and Vanity Fair, roaming the world and marking the epoch. She was so prestigious that she was the first professional in the United States to make an official portrait of Queen Elizabeth II.
She wanted to photograph the queen on a horse, as Elisabeth II has a special fondness for the animals.
The request was denied, but it did not affect the final quality of the photo shoot.