Although computers can improve hand-eye coordination and spatial reasoning, computer games are a cause of poor literacy in children. After-school hours spent playing computer games are hours not spent reading. Therefore, children who spend most of their spare time playing these games have less experience reading than other children have.
The argument depends on which of the following assumptions?
【选项】
Formal instruction contributes little or nothing to children's acquisition of reading skills.
选项是否正确？