Which of these aspect ratios are acceptable for image assets used in app campaigns?

Q. Which of these aspect ratios are acceptable for image assets used in app campaigns?

• 1:1, 1.75:1, and 4:5
• 1:1 and 1.91:1 only
• 1:1 and 1.75:1 only
• 1:1, 1.91:1, and 4:5