The correct answer is:
A. David ha abierto la lata.
"David ha abierto la lata", is the best Spanish equivalent to, "David has opened the can".

Answer:
Since this is a listening and comprehension exercise, I can't solve it for you. But I can give you some tips so you can solve it for yourself.
Some of the most common activities in a Spanish routine are the following:
Despertarse Wake up
Levantarse Get up
Bañarse Take a bath
Cepillarse los dientes Brushing teeth
Desayunar Have a breakfast
Ir a trabajar Go to work
Almorzar Have lunch
Ir al gimnasio Go to the gym
Preparar la cena Make dinner
Mirar televisión Watch TV
Limpiar la casa Clean the house
What you should do is try to identify some of these activities and link them to the corresponding people.
Answer:
1. Ahora yo estoy vistiendo el bebé.
2. Ahora yo estoy sirviendo la sopa.
3. Ahora yo no estoy leyendo tus libros.
4. Ahora yo estoy pidiendo helado de café.
Pides/pido is the correct answer if you need help with anything else I’m here:)