According to the relevant statute, what happens if a person refuses to submit to a specimen taking?

The chosen answer correctly indicates that when a person refuses to submit to a specimen taking, a specimen may not be obtained without additional legal authority. This is rooted in the legal principle that an individual has the right to refuse to provide a specimen, and unless there is a warrant or exigent circumstances justifying the action, law enforcement cannot proceed with taking a specimen against their will.

In circumstances where an individual chooses not to comply with the request for a specimen, officers must respect that refusal unless they have a warrant or some other legal means to compel the action. This is aligned with an individual's constitutional rights concerning privacy and bodily autonomy, which protect against non-consensual procedures.

The other options do not accurately reflect the legal standing in such situations. For instance, although obtaining a warrant is a potential route for law enforcement to take further action, it is crucial to note that without that warrant, a specimen cannot be lawfully taken. Thus, option A is the most appropriate choice given the context of the statute regarding specimen taking and individual rights to refuse.