That was the first thing I wondered when I realized that he was n't joking . " He gazed at Goku again . " I suppose I 'll level with you ; we all know that Sanzo has not been himself lately . "
Why is the narrator wary of Sanzo 's recent behavior ?
Pick the best answer from the following options:
- Sanzo is showing signs of sadness .
 - Sanzo is showing signs of anger .
 - Sanzo is showing signs of excitement .
 - Sanzo is showing signs of excellence .


Sanzo is showing signs of sadness .