Correct distance obtained by an erroneous chain is:

• A. <img src="/_files/images/civil-engineering/surveying/51-3.19-1.png">
• B. <img src="/_files/images/civil-engineering/surveying/51-3.19-2.png">
• C. <img src="/_files/images/civil-engineering/surveying/51-3.19-3.png">
• D. none of these.