Which of the following statements with regard to resection of rectal cancers is/are true?
A.	A distal margin of 5 cm should be obtained because 42% of patients have microscopic evidence of intramural spread beyond 3 cm from the palpable tumor
B.	A distal margin of 3 cm should be obtained because only 3% of patients have microscopic evidence of intramural spread beyond 2 cm from the palpable tumor
C.	Local recurrence rates correlate strongly with distal margins less than 4 cm
D.	There is no correlation between local recurrence and distal margins beyond 2 cm
Answer:B
Which of the following statements with regard to resection of rectal cancers is/are true?
A.	A distal margin of 5 cm should be obtained because 42% of patients have microscopic evidence of intramural spread beyond 3 cm from the palpable tumor B.	A distal margin of 3 cm should be obtained because only 3% of patients have microscopic evidence of intramural spread beyond 2 cm from the palpable tumor C.	Local recurrence rates correlate strongly with distal margins less than 4 cm D.	There is no correlation between local recurrence and distal margins beyond 2 cm