执行以下Python代码后，输出结果是？

data = {'Math': 90, 'Science': 85, 'English': 92}
subject = 'Science'
if subject in data:
  grade = data.get(subject, 0)
  if grade >= 90:
   level = 'A'
  elif grade >= 80:
   level = 'B'
  else:
   level = 'C'
print(level)