During the renaissance, artists like masaccio and giotto began to create human forms and landscapes that were based on direct observation, not formulas. this is called

I believe C would be the best choice.Butterfield's horse sculptures have open airy forms, but lack realistic detail and the ability to depict a "powerful" stallion.Remington's sculptures lack an open airy form, but have realistic detail and do depict "powerful" stallions.
Hope this helped <3

C would be the best choice.

Ineed the list of artworks and characteristics.