I got home , discovered my mother has a problem with huge half inch long carpenter ants and took Bonnie on a walk , ( after I eradicated the ants of course ) . She did something she had never done before to me , she pulled free from me and ran off into the woods near my mother 's house . Damnit .

OPT: (1). They just lost track of their mother .; (2). They just lost Bonnie to cancer .; (3). They just lost their dog .; (4). They just lost track of their mother Bonnie .;
Answer the following question: Why is the narrator suddenly very nervous ?
(3).