Which would be the most accurate tool for measuring the length of a typical sized classroom room? (select one)
i. A 6-inch ruler marked with inches
ii. A 6-inch ruler marked with half inches
iii. A 1-foot ruler marked with inches
iv. A 1-foot ruler marked with half inches
v. A yard stick marked with inches
vi. A yard stick marked with half inches
vii. A 10-foot long measuring tape measure marked with inches
viii. A 10-foot long measuring tape measure marked with half inches

Give an answer and then explain why this would be the correct measurement to measure the classroom