Question from the Typescript - Overview test

interface KeyValuePair<T; U> {
 key: T;
 value: U;
}

interface KeyValuePair<typeparam T, U> {
 key: T;
 value: U;
}

interface KeyValuePair<T: any, U: any> {
 key: T;
 value: U;
}

interface KeyValuePair<T, U> {
 key: T;
 value: U;
}