French phrase
Quelles ~ sont nécessaires pour ~ ?
Meaning
Which ___ are necessary for ___?
When to use it
Asks which items are needed for a specific purpose. It is neutral and suits practical discussions where the required items depend on the situation.
Example dialogue
Quelles ressources sont nécessaires pour ce projet ?
Which resources are necessary for this project?
Nous devons allouer du budget et du personnel spécialisé.
We need to allocate budget and specialized staff.