C. Because you are using the 3rd person singular of the verb in the present tense
<span>Por favor, espere un momento, tengo que buscar mi cuaderno.
Please wait a minute, I have to get my notebook.
Hable más fuerte por favor.
Please speak louder.
Por favor, hable más despacio.
Please, speak slower.
Must not do.
Por favor, no grite en el teléfono.
Please, do not yell over the phone.</span><span>
No hable tan rápido, por favor.
Do not speak so fast please.
Source: Soy completamente bilingue y entiendo los dos lenguajes por igual/Speak fluent bilingual in both languages and understand both the same. Hope it helps/ Espero que le haya ayudado :)</span>
For the first set: If aliens have donuts with them, ask sweetly, not frantically
for the second set: Please consider I bake, I've never sewn things
idk... need any more... message me