The correct answer is B) They appear to be disjointed and cold, even when the child desires a more loving relationship.
What I can infer about the narrator's relationship with "Baba" is that they appear to be disjointed and cold, even when the child desires a more loving relationship.
This is so because when the narrator asked Baba if he could seat with him, Baba answered that no, that it was the time for "grown-ups," and the narrator had to sit alone and read one of his books, as Baba had asked him to do. So we infer that the relationship between them was cold and Baba never had time for the narrator, although the boy wanted a closer relationship.
Even in the photographs that, the narrator describes in the text, Baba is holding him, -a baby, at the time- but Babas' face was tired and grim.
This text was part of the story titled "The Kite Runner."