A family spends 1⁄10 of its annual income for housing, 1⁄4 for food and clothing, 1⁄5 for general expenses, and 2⁄15 for entertainment. What fractional part of their income is spent on these items altogether? A. 6⁄41 B. 41⁄60 C. 1⁄7 D. 11⁄12