What is the term for the smallest subunit in Ether.

The smallest subunit of Ether is called aWei. Ether (ETH) is divided into several subunits for precision in transactions, with Wei being the smallest, equivalent to 10−1810^{-18}10−18 Ether.

Key Details:

Subunits of Ether: The Ethereum network uses smaller units to facilitate transactions that require a higher degree of accuracy. The most commonly used subunits are Gwei (billion Wei), but Wei represents the smallest possible division.

Importance in Transactions: Wei ensures that Ether can be broken down into very small units, allowing for microtransactions and precise gas calculations, which are essential in smart contract executions.

Naming Convention: This denomination was named in honor of Wei Dai, a cryptographer who proposed b-money, an early concept of digital currency.

Therefore,D. Weiis the correct answer, as it is the smallest unit of Ether.