Image recognition tasks can be divided into three levels, according to the abstraction of the processing content, from low to high?

Image recognition tasks can be divided into three levels, according to the abstraction of the processing content, from low to high?
A . Image processing, image analysis, image understanding
B . Image analysis, image understanding, image processing
C . Image understanding. Image analysis. Image Processing
D . Image analysis, image processing, image understanding

Answer: A