Odd One Out: CID

Explanation:

BIS, ISI, ISO, and HALLMARK are all international standards organizations that provide certification and accreditation services for products and services. CID, on the other hand, stands for Criminal Investigation Department and is a police unit responsible for investigating crimes.

To break it down further:

BIS (Bureau of Indian Standards) - India's national standards body that develops and promotes standards for products and services to ensure quality, safety, and reliability.

ISI (International Organization for Standardization) - An independent, non-governmental international organization that develops and publishes standards for various industries, including manufacturing, technology, and healthcare.

ISO (International Organization for Standardization) - Similar to ISI, ISO is a non-governmental organization that develops and publishes international standards for products and services to ensure quality, safety, and efficiency.

HALLMARK - A certification mark that indicates that a product has met certain standards of purity, quality, and authenticity. The hallmark is commonly used for precious metal jewelry and other luxury goods.

CID (Criminal Investigation Department) - A police unit responsible for investigating crimes, gathering evidence, and bringing suspects to justice. It is not an international standards organization like the other options.

Because cid is investigation team okk