Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_77 (points INTEGER, year VARCHAR, chassis VARCHAR)

### Question ###
In 1985, how many points were earned by the entrant with the March 85B chassis?

### Accurate SQL ###

SELECT MAX(points) FROM table_name_77 WHERE year = 1985 AND chassis = "march 85b"