CREATE TABLE table_17493 ("Subjects" TEXT, "First Year" TEXT, "Second Year" TEXT, "Third Year" TEXT, "Fourth Year" TEXT)

What is the first year course in the program where geometry is taken in the third year?
SELECT "First Year" FROM table_17493 WHERE "Third Year" = 'Geometry'
SELECT "First Year" FROM "table_17493" WHERE "Third Year" = 'Geometry'