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What is In a child, one should be worried if- and explain in detail?
Ans. is 'd' i.e., Social smile absent by 10 weeks o Social smile develops by 2 months About other options o Delayed eruption is usually considered when there are no teeth by approximately 13 months of age --- Nelson o Toilet control develops by 3 years when child can withhold and postpone his bowel movement --- O.P. Ghai o Stammering may occur at 3 years --- Neeraj Ahuja