Which of the following is the correct way to import the numpy module with an alias (np) and use its sqrt function?

Question

Which of the following is the correct way to import the numpy module with an alias (np) and use its  sqrt  function?

Answer

import numpy as np 
 result = np.sqrt(16)

Answer

import numpy as sqrt 
 result = sqrt(16)

Answer

import numpy 
 result = np.sqrt(16)

Answer

import numpy as np 
 result = numpy.sqrt(16)

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