Which meaning in the dictionary entry is correct for the word dedicate in the context of the following sentence?

Myra has decided to dedicate her life to the welfare of animals.

dedicate (ded-i-kayt) v.

to commit or devote (time, effort, or oneself) to a particular job or purpose
to name (a book or other artistic work) as being published or presented as a tribute to someone
to formally open or unveil (a building or memorial)
to consecrate (a religious place or other building) to a deity or saint