European influence in Southeast Asia was stronger in Malay Peninsula and Indonesian Archipelago because?

1: These states did not have strong central monarchies.
2: These states had fewer goods to trade.
3: These states were Christian
4: These states needed slaves.

My answer is #1...Is this correct

In southeast Asia, European influence

Was mostly limited to the Malay Peninsula and the Indonesian Archipelago...is this correct?

3 answers

I believe you're right.
Thank you very much!!
You're very welcome.