Answer
160
Work Step by Step
35 is larger than 5, so the first step in the long division will be to divide 35 into 56. The quotient of $56 \div 35$ will therefore be placed over the 6 in 5600. Since there must be a digit in the quotient placed above each digit in the dividend, the quotient for $5600\div 35$ will be a 3 digit answer, with one digit over the 6 and another digit over each 0.
Since 160 is the only 3 digit answer given, 160 is the correct answer choice.