(i) The speaker addresses the person as "my dear" because he is speaking affectionately and intimately to Anne Gregory, showing warmth and closeness while delivering an important truth about love.
(ii) "Yellow hair" signifies physical beauty or outward appearance. The poet uses it to show that human beings are attracted to a person's external features rather than their true inner self, making their love conditional and superficial.
(iii) The poet suggests that God's love in comparison to that of a human being is selfless.
(iv) Option C — 2 and 4
According to the extract, God does not love a person for their physical appearance (yellow hair symbolises outer beauty) but loves them "for yourself alone," meaning for their inner qualities. So God does not love based on physical appearance (2), and the extract implies humans fail to love for inner qualities (4).
Source: For Anne Gregory, last stanza
---