What is the correct translation of this sentence?
she has to wash the dishes.

ella hay que lava los platos.

hay que lavar los platos.

ella tener que lava los platos.

ella tiene que lavar los platos

I think the correct answer is D. because Ella means she. Tiene means has to or have. los platos means the dishes so add it all together and it makes the most sense

Can you give me the link also to the question

For this question, it will be important to use the words "mejor" (better), "lo mejor" (the best), and "lo peor" (the worst). while "mejor" is comparative (you are comparing one thing to something else), "lo mejor" and "lo peor" are superlative (there is nothing else better or worse than what these words are describing - there is no comparison).  you could say something like: la música rap es mejor que la música clásica - que es lo peor - pero la música rock es lo mejor de todas las formas de la música (rap music is better than classical music - which is the worst - but rock music is the best out of all the forms of music).