In futures trading, the contract size refers to the standardized quantity of the underlying asset that must be delivered or settled under one futures contract.
For example, a futures contract on gold might specify a contract size of 1 kilogram, meaning that each contract represents 1 kg of gold.
Explanation of Other Options:
(A) Basis: The difference between the spot price and futures price of an asset.
(B) Contract cycle: The time period or months during which futures contracts expire.
(D) Expiry date: The date on which the futures contract expires.
Therefore, option (C) correctly identifies the amount of asset per futures contract.