B, La comida la recoges en el mesón y la llevas a tu mesa.
1. Lava
2. Ordene
3. Ve
4. Habla
5. Estudien
You can use "tanto" for almost everything but when you use "tanta" it has to be a word that ends with "a" or you can guide by the words that start with "la" on a sentence.
For example:tantas niñas, tantas mesas, tantas casas.
All those words start with "la":las niñas, las mesas, las casas.