What is Opinion Research Centre (OPC), when Party is Conservative?
CREATE TABLE table_name_40 (
    opinion_research_centre__opc_ VARCHAR,
    party VARCHAR
)
SELECT opinion_research_centre__opc_ FROM table_name_40 WHERE party = "conservative"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is Opinion Research Centre (OPC), when Party is Conservative? ### Input: CREATE TABLE table_name_40 (
    opinion_research_centre__opc_ VARCHAR,
    party VARCHAR
) ### Response: SELECT opinion_research_centre__opc_ FROM table_name_40 WHERE party = "conservative"