Find the value the following expression: 1/6x + 2/5xy – 13y – 7/5xy + 1/6x.

• A. 2/3x – 9/5xy – 13y
• B. 2/3x + 1xy – 13y
• C. 2/3x – 1xy – 13y
• D. -1xy – 13y