What is wrong with this code snippet?
const subject = new Subject();
subject.next('hello');
subject.subscribe(value => console.log(value));AThe subscription will not receive 'hello' because Subject does not replay past values.
BThe code will throw a syntax error because subscribe is called after next.
CThe Subject should be replaced with BehaviorSubject to avoid errors.
DThe next() method cannot be called before any subscribers exist.
