Which of the following is not a type of machine learning?
A. Supervised Learning
B. Reinforcement Learning
C. Graphical Modeling
D. Natural Language Processing
D. Natural Language Processing is not a type of machine learning. Instead, it refers to the use of computational techniques to enable computers to interpret, understand, and generate human language.
Complete the following task based on the instruction and optional input provided.### Instruction:
Which of the following is not a type of machine learning?

### Input:
A. Supervised Learning
B. Reinforcement Learning
C. Graphical Modeling
D. Natural Language Processing

### Output:
D. Natural Language Processing is not a type of machine learning. Instead, it refers to the use of computational techniques to enable computers to interpret, understand, and generate human language.