Explanation

 ESDT commonly stands for E-Securities and Digital Tokens, 

Explanation

• UNICEF was founded on 11 December 1946.
• It is stands for the United Nations International Children's Emergency Fund.
• It's headquarters is located in New York City, USA.
• It was established to provide emergency food and healthcare to children in worldwide countries.

Explanation

 O.O is a commonly used shorthand for "Office Order"

It refers to a formal document issued by an organization that instructs employees on a specific task or policy. 

Explanation

 ENDR commonly stands for End Record.

It is often used in file formats like RIS (Reference Linking Format)

They indicate the end of a citation record within a file.

The "ER" tag is used to signify the end of a record, with no additional blank lines between records

Explanation

The National Futures Association (NFA)

It is the self-regulatory organization (SRO) for the U.S. derivatives industry,

They traded on-exchange futures, retail off-exchange foreign currency (forex), and OTC derivatives (swaps).

NFA is headquartered in Chicago

Founded: 1982

It was created by the Commodity Futures Trading Commission (CFTC) in September 1981

And began regulatory operations in 1982.