Which of the following methods can find an element by its class name?

The correct methods for finding an element by its class name are A. findelementbycssselector and D. findelementbytagname. The findelementbycssselector() method can be used to locate an element by its class name, while the findelementbytagname() method can be used to locate an element using the tag name of the element (such as 'div', 'span', 'a', etc).