Death Note: How did Mello and Kiyomi Takada die (I forgot!)?

Question

Death Note: How did Mello and Kiyomi Takada die (I forgot!)?

Answer 1

Kiyomi wrote Mello's name in the death note and Kiyomi burned herself.

Answer 2

Mello died after takada wrote his name on a piece of paper from the death note that Light had given her, and takada died after setting the truck she was still in on fire because Light had written her name in the death note making her commit suicide but it is revealed later on that at the same time Light wrote takada's name in the death note, Mikami had also written her name in his death note thinking Light had hinted that to him, but he wasn't supposed to.

Answer 3

Takada wrote M's name on a piece of death note and Light made her commit suicide by (burned herself)!