What are the counties represented in District 12.1 12a?
CREATE TABLE "current_members_of_the_howard_county_del" (
  "district" text,
  "counties_represented" text,
  "delegate" text,
  "party" text,
  "first_elected" real,
  "committee" text
);
SELECT "counties_represented" FROM "current_members_of_the_howard_county_del" WHERE "district"='12.1 12A';