Which of the following is an example of 'endophoric' reference?

1. ক
   Looking at a picture and saying 'That is beautiful'
   
2. খ
   Pointing to a person and saying 'He is my brother'
   
3. গ
   Using a pronoun to refer to a noun mentioned earlier in the same text
   
4. ঘ
   Referring to the weather outside while inside a room