In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

The factory complex houses a shop-floor(A)/and 10 cubicles for the staff in an area(B)/of about thousand squares meters.(C)/No error(D)

A

A

B

B

C

C

D

D