On the Consent Form for Mrs

On the consent form for Mrs. Smith's treadmill stress test, a large X is marked on the signature line. Should you continue with the procedure? Why or why not?

A) No, do not complete the test. Mrs. Smith does not understand why the consent form is necessary.
B) Yes, complete the test. Mrs. Smith did not have her glasses available when signing.
C) No, do not complete the test. Mrs. Smith has refused to have the test.
D) Yes, complete the test. Mrs. Smith is unable to sign her name.