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Miriam ran a small weekday Bible-art club from her apartment. One afternoon, Lydia left her five-year-old son, Timothy, with Miriam while Lydia went to pick up hymnals for a prison-ministry rehearsal. During the club, Timothy began crying near the craft table. Miriam, trying to stop the crying before the other children heard, struck Timothy several times with a knotted scarf, leaving raised red marks across his shoulder and upper back. Not long afterward, Lydia returned, walked Timothy home, and helped him change into pajamas. When she saw the marks, she asked, "Timothy, what happened?" Timothy answered, "Miriam hit me with the scarf." Miriam was later charged with child abuse. At Miriam's trial, the prosecution called Lydia during its case-in-chief. When Lydia began to recount Timothy's answer, Miriam's lawyer objected that Timothy's statement was hearsay. What is the prosecutor's strongest argument against the objection?