Which entrant had a chassis of March CG891?
CREATE TABLE table_name_20 (entrant VARCHAR, chassis VARCHAR)
SELECT entrant FROM table_name_20 WHERE chassis = "march cg891"
### Context: CREATE TABLE table_name_20 (entrant VARCHAR, chassis VARCHAR) ### Question: Which entrant had a chassis of March CG891? ### Answer: SELECT entrant FROM table_name_20 WHERE chassis = "march cg891"