Final answer:
The cause of confusion about who owns copyrights in cooperative songwriting is the lack of clear collaboration agreements and contracts.
Step-by-step explanation:
The cause of confusion about who owns copyrights when songwriting is done cooperatively can be explained by the lack of clear collaboration agreements and contracts. This is reflected in the evidence provided where Cynthia Arato, a lawyer for Lizzo, states that the Raisens did not collaborate with Lizzo or anyone else on the song 'Truth Hurts.' Additionally, Alter recommends that songwriters sign contracts to make the terms of collaboration clear, in order to avoid any potential issues.
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