The pointed arches and stained glass window belong to which style of the middle ages art talk

Plz due ! which statement about the drawing techniques leonardo da vinci, michelangelo, and vincent van gogh used in artworks are true? select all that apply. a leonardo da vinci used the sfumato technique of blending and blurring chalk so edges nearly disappear. b van gogh used a variety of different strokes to create different surfaces and textures c van gogh used a cross-hatching technique of filling certain areas with tiny dots to create value d michelangelo used the hatching technique of drawing parallel lines close to each other. if correct mark !