Final answer:
The informal negative command of 'recaudar fondos' is 'no recaudes fondos' (option B).
Step-by-step explanation:
The informal negative command of the phrase 'recaudar fondos' in Spanish is 'no recaudes fondos' (option B). This command is used to tell someone not to collect funds. The negative command is formed by adding the word 'no' before the verb in the informal second person singular form. In this case, 'recaudar' is the verb and 'no recaudes' is the negative command.
Learn more about informal negative command of 'recaudar fondos'