CREATE TABLE table_67048 ("Ship" TEXT, "Pennant number" TEXT, "Laid down" TEXT, "Launched" TEXT, "Commissioned" TEXT)

Which commission was launched 28 june 1934, and has a Pennant number of h.78?
SELECT "Commissioned" FROM table_67048 WHERE "Launched" = '28 june 1934' AND "Pennant number" = 'h.78'
SELECT "Commissioned" FROM "table_67048" WHERE "Launched" = '28 june 1934' AND "Pennant number" = 'h.78'