CREATE TABLE table_1884 ("State  ( class ) " CLOB, "Vacator" CLOB, "Reason for change" CLOB, "Successor" CLOB, "Date of successors formal installation" CLOB)

How many different reasons are there for the change in Connecticut (3)?
SELECT COUNT("Reason for change") FROM table_1884 WHERE "State (class)" = 'Connecticut (3)'
SELECT COUNT("Reason for change") FROM "table_1884" WHERE "State (class)" = 'Connecticut (3)'