Question

source: alexandra sifferlin, \the case against antibacterial soap is getting stronger.\ published in time, 2016:
now a new study done in zebrafish suggests triclosan also messes with our gut—interfering with the community of bacteria that makes up our microbiome.
student text:
according to sifferlin, triclosan \messes with our gut—interfering with the community of bacteria that makes up our microbiome.\
is the student text plagiarized?
no, it is not plagiarized.
yes, because it fails to use quotation marks.
yes, because it fails to cite the source.
yes, because it fails to use quotation marks and fails to cite the source.

Explanation:

The student correctly attributes the quoted text to Sifferlin (citing the source) and uses quotation marks around the exact phrased content from the original source, which follows proper academic citation and quotation practices.

Answer:

No, it is not plagiarized.