SAO PAULO, March 17 (Reuters) - The Brazilian government is studying whether to regulate Internet platforms with content that earns revenue such as advertising, its secretary for digital policies, Joao Brant, said on Friday. "The absence of accountability for content that is promoted, monetized or presented as advertising must be reconsidered, he said, adding: "For them to have zero responsibility for that content is very bad. See here for a complete list of exchanges and delays