C. Stroke if I'm not mistaken.
Good luck!
Answer: The answer is Bing
Explanation: Thi is because it is a blog as well as a search engine.
In English
En Ingles
By definition artificial intelligence is intelligence demonstrated by machines, unlike the natural intelligence displayed by humans animals, which involves consciousness and emotionality.
In Spanish
En Espanol
Por definición, la inteligencia artificial es la inteligencia demostrada por las máquinas, a diferencia de la inteligencia natural mostrada por los animales humanos, que involucra conciencia y emocionalidad.
I would say an investigation is a part-by-part scrutiny of a given problem. An investigation is examining a problem as to for example, what happened, how did it happen, when and why and re the consequences.