All of the following are considered development delay except:

Ans. d. 2 words phrase at 18 months of age (Ref: Ghai 7/e p31)Spontaneous 2-word phrases (pivotal speech), consisting of the flexible juxtaposition of words with clear intention is characteristic of 2 years old and reflects the emergence of grammatical ability (syntax).Development Milestones in a child of 3 years:Motor: Goes up stairs with one foot on each step, riding tricycle.Fine motor: Makes tower of ten cubes, draw a circle.Social: Dry by night, knows gender.Linguistic: Know age, gender and nameDevelopment MilestonesMotorFine motor* 3 months - Neck holdingQ.* 5 months - Sitting with supportQ.* 6 months - Prone to supine, supine to prone.* 8 months - Sitting without supportQ.* 9 months - CrawlingQ* 10 months - Creeping.* 11 months - Walks two hands held or on holding the furniture.* 12 months - Walks few steps independentlyQ.* 2nd year - Walks up and down stairs with two feet on each step, runs, can kick a ball.* 3rd year - Goes up stairs with one foot on each step, riding tricycleQ* 4 years - Comes down stair with one foot on each step.* 5 years - Skip.* 4 months - Grasps a rattle or rings when placed in hand* 5 months - Goes for object and gets them usually with bidexterous approach, puts objects into mouth, plays with toys.* 6 months - Drops one object when another is given.* 9 months 0u Unidexterous approach to object transfers retains one cube when another is offered, Pincer graspQ.* 1 year - Gives toy to examiner. Mouthing is much reduced.* 15 months - Self feeding with spoonQ* 18 months - Self feeding with cup. Makes tower of three-four cubes.* 2 years - Makes tower of six-seven cubes, and can turn page of book one at a time* 3 years - Makes tower of ten cubes, draw a circleQ* 4 years - Draw plus (+) and squareQ* 5 years - Draw cross (x) and triangleQ Development MilestonesSocialLinguistic* 2 months -- Social smileQ* 3 months -- Recognizes mother.* 6-7 months -- Smiles at mirror image.* 9 months -- Waves bye-bye* 1 year -- Shakes head for no.* 15 months -- Hugs the parent.* 2 months -- Vocalizes.* 3 months -- Cooing.* 6 months -- Mono syllabus (ma, ba)Q* 9 months -- BisyllableQ (ma-ma. ba-ba).* 12 months -- Two words with meaningQ* 18 months -- Ten wordsQ Development Milestones* 8 months - kisses the parent.* 2 years - Dry by day* 3 years - Dry by night, knows genderQ* 4 years - Goes to toilet alone.* 2 years - Simple sentences.* 3 years - Know age and gender and nameQ* 4 years - Tell storyQ* 5 years - Name four coloursQ