Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the average drop zone time in the N drop zone for the 1st Pathfinder Prov.?

### Inputs:
table_name: table, columns: ['Serial', 'Airborne Unit', 'Troop carrier Group', '# of C-47s', 'UK Base', 'Drop Zone', 'Drop Zone Time']

### Response:
SELECT AVG Drop Zone Time FROM table WHERE Drop Zone = n AND Troop carrier Group = 1st pathfinder prov.