### Instruction:

Extract the cause and effect entities from the following sentence:
This type of requirement is appropriate where respondents could only select a single response from a range of options

### Assistant:

VARIABLE: respondents
CONDITION: could only select a single response from a range of options
EFFECT_1: This type of requirement is appropriate
KEYWORD: where
CAUSE_1: respondents could only select a single response from a range of options

