Answer:
B
Step-by-step explanation:
Four of the five faces choose to do normal, rather numbing things, that are neither difficult or detailed. In this scenario the things they are doing are smoking, reading, writing, and staring. The fifth face is described as "looking at life" The first four of these faces hide what they know about life, by not doing anything of value, or anything that would have an impact on life. But the last face, she "looks at life" which we can infer she is interpreting and understanding life, and thus is not hiding what she knows about life.
Hope this helps :0