I´d say A. Others don´t make much sense in the context.
All of it or just a specific part
Our Solar System has nine major planets. Only one is knows to have intelligent life.
Or if it must be in one sentence:
Our Solar System has nine major planets, but only one is knows to have intelligent life.
Indirect object is the part of the sentence were 'to' or 'for' is not stated clearly, but you understand it.
Lately, my parents have given my sister more freedom to decorate her room.
Room is the indirect object in this sentence.
Name-Calling. When Squealer/Napoleon calls Snowball a 'traitor', and 'criminal'
