单选题
绘制sin(x)的图形如图所示,画线处的的语句是？（ ）
import matplotlib.pyplot as plt
import numpy as np
x = np.linspace(0, 10, 30)
_________
plt.show()
A
plt.plot(x, np.sin(x))
B
plt.scatter(x, np.sin(x))
C
plt.bar(x, y)
D
plt.scatter(x, y)