How did Islam expand rapidly after the fall of the Roman Empire? (1 point)

1. Islamic empires joined together groups of Christians who had been forgotten by the Roman Empire.

2. Islamic empires joined together big, expansive kingdoms left in a vacuum of power caused by the fall of the Roman Empire.

3. Islamic empires joined together nomadic groups and small, local kingdoms that were left in a vacuum of power caused by the fall of the Roman Empire.

4. Islam did not expand rapidly after the fall of the Roman Empire.

2. Islamic empires joined together big, expansive kingdoms left in a vacuum of power caused by the fall of the Roman Empire.

3. Islamic empires joined together nomadic groups and small, local kingdoms that were left in a vacuum of power caused by the fall of the Roman Empire.

To find the correct answer to this question, we can analyze the options given and eliminate the ones that are incorrect.

Option 1 suggests that Islamic empires united groups of Christians who had been forgotten by the Roman Empire. However, this is not a significant factor in the rapid expansion of Islam.

Option 2 proposes that Islamic empires united big, expansive kingdoms that were left in a power vacuum caused by the fall of the Roman Empire. This answer holds some merit as the decline of the Roman Empire left a power vacuum in many regions, which Islamic empires were able to take advantage of.

Option 3 suggests that Islamic empires united nomadic groups and small, local kingdoms left in a vacuum of power caused by the fall of the Roman Empire. This answer is also plausible, as the power vacuum left by the fall of the Roman Empire allowed Islamic empires to expand by assimilating these fragmented groups.

Option 4 states that Islam did not expand rapidly after the fall of the Roman Empire. This answer contradicts historical evidence and can be eliminated.

Considering the factors mentioned above, options 2 and 3 seem to be the most plausible explanations for the rapid expansion of Islam after the fall of the Roman Empire. Either the unification of big, expansive kingdoms or the assimilation of nomadic groups and small, local kingdoms contributed to this expansion. It is important to note that both factors likely played a role in the expansion, rather than just one exclusive explanation.