Which of the Following Statements Is Correct Concerning Cold Antibody

Multiple Choice

Which of the following statements is correct concerning cold antibody screens?

A) Patient serum is incubated with group O adult and cord red blood cells at 4°C.
B) Patient serum is incubated with group O cord cells at 37°C.
C) Patient serum is incubated with check cells at 18°C.
D) Patient serum is incubated with group A cord cells at room temperature.