How to report Form 3520 and inheritance

I inherited an asset from foreign country and want to file Form 3520. 

In Form 3520, A.  which one should I check ?  Initial, Final, Amended ? 

It was not from Trust,  some says  Do not check any.   I am not sure which one is correct...

 

It is not from Trust, I need to fill up Part IV only, right?