Identify the Letter of the Choice That Best Matches the Phrase

Identify the letter of the choice that best matches the phrase or definition.
-Software that functions like a human expert in a particular field or area

A) natural language processing
B) robotics
C) fuzzy logic
D) expert system
E) Turing Test
F) genetic algorithm
G) computer vision
H) artificial intelligence
I) intelligent agent
J) virtual reality
K) neural network
L) speech recognition