Given below is a statement followed by two conclusions numbered I and II. Assume everything in the statement to be true, and then decide which of the given conclusions logically follow (s), beyond a reasonable doubt, from the information given in the statement.

Statement: The colour of blood is red due to the presence of red blood cells.

Conclusion I: If red blood cells are removed, blood will lose its red colour.

Conclusion II: Red blood cells will be red as long as they remain in the blood.