Which statement about the roots of قَالَ and قِيلَ is correct?

Complete Conjugation of the Hollow Wāw Verb: Qāla–Yaqūlu

• Both derive from ق و ل, with different active/passive iʿlāl
• One has root ق و ل and the other ق ي ل
• The passive has root ق ا ل
• The two have unrelated roots