It's A. The subject is concern for the continued existence of the panther (the concern is what the sentence is about), and the phrase 'Because the panther is endangered already' comes before it.
<span>Intrinsic motivation is defined as performing an action or behavior because you enjoy the activity itself</span>
Well, there could be a lot of outcomes with lying, so the effect could be something such as getting caught or feeling guilty.
Adverb. to be near to someone or something
