CREATE TABLE table_74968 ("Condition" TEXT, "Prothrombin time" TEXT, "Partial thromboplastin time" TEXT, "Bleeding time" TEXT, "Platelet count" TEXT)

Which Prothrombin time has a Platelet count of unaffected, and a Bleeding time of unaffected, and a Partial thromboplastin time of normal or mildly prolonged?
SELECT "Prothrombin time" FROM table_74968 WHERE "Platelet count" = 'unaffected' AND "Bleeding time" = 'unaffected' AND "Partial thromboplastin time" = 'normal or mildly prolonged'
SELECT "Prothrombin time" FROM "table_74968" WHERE "Bleeding time" = 'unaffected' AND "Partial thromboplastin time" = 'normal or mildly prolonged' AND "Platelet count" = 'unaffected'