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

### Instruction:
What date was Rica head of household?

### Inputs:
table_name: table, columns: ['Task No.', 'Date given', 'Head of Household', 'Hand Grenade User', 'Hand Grenade Recipient']

### Response:
SELECT Date given FROM table WHERE Head of Household = rica