The answer to the question above is:
A) It gave him the freedom to meditate on the destiny of humanity.
Explanation: Khadija’s properties was foreordained by Allah to help Islam and carry out its goals. The financial support of Khadija helped strengthened Islam especially during its establishment. Muhammad used Khadija’s properties to help and support the poor and needy, liberate the slaves, and gave financial support to his needy companions.