Through whom did Hazrat Abu Bakr (RA) formalise the marriage contract for Hazrat Aisha (RA)?

1. Hazrat Khawlah bint Hakim (RA)
2. Hazrat Safiyyah (RA)
3. Hazrat Juwairyyah (RA)
4. None of these

Hazrat Khawlah bint Hakim (RA) facilitated the marriage proposal between Hazrat Aisha (RA) and the Prophet (PBUH) on behalf of Hazrat Abu Bakr (RA).