请看下列程序，运行后的结果是？
import numpy as np
def numpy_sum():
a = np.array([1, 2, 3])
b = np.array([4, 5, 6])
c = a ** 1 + b ** 2
return c
print(numpy_sum())
[17 27 39]
[5 7 9]
[9 12 15]
[2 4 6]