It's intended emotional effect on the reader. Feel free to ask more questions if needed
Historians today Bemoan..
Answer:
The answer would be ''usually contains'', not contain,
Explanation:
This is the correct version.
''Saag paneer- an Indian dish made with greens, cream, and paneer cheese-
usually <em>contains</em> spinach in the United States; in India, however, the dish is
often prepared with beet, collard, fenugreek, or mustard greens,''