I believe the answer is: Cause: Alfonso sees his crooked teeth in the mirror. Effect: He becomes depressed.
The fact that he become depressed after seeing his disfigured teeth indicates that he is very self-concious about his physical appearance and worries how it might makes other people perceive him, Otherwise he would just ignore it like nothing happen.
Answer: Measurable.
Explanation: It is possible to measure a market segment and the difference in preference for a product by knowing the size, purchasing power and profile of a market segment.
The patient is experiencing Depression she is isolating herself.