Answer:
D) not able to be taken away.
Step-by-step explanation:
You know this because the excerpt from the Declaration of Independence that is provided lists life, liberty, and the pursuit of happiness as examples of unalienable rights, which can be interpreted as intrinsic rights. Intrinsic rights are rights that are inherent to a person, or rights that cannot be taken away.
If this is not sufficient for you, Google Dictionary defines unalienable as "not transferable to another or not capable of being taken away or denied."
Cheers.