Context: soo about a month ago someone sent him a love letter with chocolates . in it she wrote that she is 24 yrs old .. and she is doing her management studies . and of course she said that she loves him . of course i was soo raged with this .. but my hubby enjoyed that .. then in a month she has sent him about 13 letters .. and gifts .. and her letters now hav changed from being romantic to raunchy .

Question: Why is this young woman sending such a high volume of letters ?
Options:
0. Because the husband offers a welcoming environment for the communication
1. Mental instability is suggested by her behavior , which is excessive
2. None of the above choices .
3. Because the husband encourages these letters by responding positively
Answer: 1