What is Full tick defined as in market data terms?

What is Full tick defined as in market data terms?

• A. The entire broadcast of all data (bid, ask, trade) available from trading activity at an exchange or set of venues across the market.
• B. The delay before a transfer of data begins following an instruction for its transfer.
• C. The coding system used to identify all financial instruments worldwide.
• D. A time-series dataset used for charting.

Answer: (A)