I agree.
https://www.understood.org/en/learning-attention-issues/treatments-approaches/early-intervention/what-you-need-to-know-about-developmental-delays
Children with developmental delays are those
A. with significant subaverage intellectual performance.
B. with significant lag behind norms in at least one developmental area.
C. with significant delay in gross motor or language development.
D. born at least two months prematurely.
my answer is b.
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