christophersalazar19 christophersalazar19
  • 13-10-2021
  • English
contestada

How many groups did the scientists study?
A. 3
B. 15
C. 50
D. 75

Respuesta :

kalimab2008 kalimab2008
  • 20-10-2021

Answer:

the answer is 3

Explanation:

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