A photograph that is taken without posing the person is called a candid.
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<u>Answer:</u>
The correct answer option is b. Ansel Adams.
<u>Explanation:</u>
Social documentation (also known as social documentary photography) is an important method of recording different social situations which focuses on social, environmental and emotional side of people's thoughts and actions.
While Ansel Adams was an American landscape photographer and an environmentalist. He is famous for for his striking images of the American wilderness.
His work is widely known for his bold, large format black and white images which he believed could be manipulated to a range of expressive tones.

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Musical Instruments: History, Technology, and Performance of Instruments of ...
By Professor of Musical Acoustics Murray Campbell, Murray Campbell, Clive A. Greated, Arnold Myers, Senior Lecturer in Music and Director Arnold Myers