Final answer:
The subject of this question is a. Baudelaire's critique of traditional art. Baudelaire argued for the allowance of free thinkers and individuals to put different paintings with or without meaning in the Salon, challenging the traditional norms of art.
Step-by-step explanation:
The subject of this question is a. Baudelaire's critique of traditional art. Baudelaire's essay 'The Painter of Modern Life' argued for the allowance of free thinkers and individuals to put different paintings with or without meaning in the Salon, challenging the traditional norms of art.
He believed that by doing so, artists like Manet were carving a path for younger people to define what art means to them and push the boundaries of artistic limitations.