Answer & Explanation
C) If the data either in I or II alone are sufficient to answer the question;
Comparing the information in the question with I. we find that 'tin' and 'lee' are the codes for 'always' and 'keep'.
So. 'pee' represents 'smiling' Thus, I alone is sufficient Am.
comparing the information in the question with II, we find that the common code word 'pee' stands for the common word 'smiling'.
Thus, II alone is also sufficient