The quantitative monetary policy tool is Alat dasar kewangan kuantitatif ialah A. open market operations, control over mortgages, installment credits and margin requirements operasi pasaran terbuka, kawalan ke atas gadai janji, kredit ansuran dan syarat margin B. open market operations, bank rates, installment credits and margin requirements operasi pasaran terbuka, kadar bank, kredit ansuran dan syarat margin C. open market operations, bank rates, statutory reserve ratios and margin requirements operasi pasaran terbuka, kadar bank, nisbah rizab berkanun dan syarat margin D. open market operations, bank rates, statutory reserve ratios and liquidity reserve ratios operasi pasaran terbuka, kadar bank, nisbah rizab berkanun dan nisbah rizab mudah tunai