What was the home town of Bob Geren, picked by the San Diego Padres?
CREATE TABLE "first_round_selections" (
  "pick" real,
  "player" text,
  "team" text,
  "position" text,
  "hometown_school" text
);
SELECT "hometown_school" FROM "first_round_selections" WHERE "team"='san diego padres' AND "player"='bob geren';