フリー問題

問題文

A builder ships a contract for non-fungible works under the common interface (EIP-721) and reads the published text twice over. One line says which declarations a contract in line with it is bound to carry. Another line says what the guarded hand-over weighs up before it runs the note on the far side. Which declarations are bound to be carried, and what does the hand-over weigh up?

選択肢

1. The declarations bound to be carried are the base declaration and the one that fields a probe, and what the hand-over weighs up is whether the far side has met such items already.
2. The declarations bound to be carried are the base declaration and the one that lists a stock, and what the hand-over weighs up is whether the far side holds logic of its own.
3. The declarations bound to be carried are the base declaration and the one that lists a stock, and what the hand-over weighs up is whether the far side has met such items already.
4. The declarations bound to be carried are the base declaration and the one that fields a probe, and what the hand-over weighs up is whether the far side holds logic of its own.