Question

Which of the following abilities emerge during the first year of life?
A. Stands independently
B. Speaks two word sentences
C. Locates hidden object
D. Grasps a block
E. Social smile
Choose the correct answer from the options given below:

• A. A, B, C, D and E
• B. A, B, C and D only
• C. A, C and D only
• D. A, C, D and E only

Hint:

Developmental Rule of Thumb:
Year 1 = Physical basics (Sit, Stand, Grab) + First Word.
Year 2 = Language explosion (Sentences) + Advanced Motor (Running, Stairs).

Answer 1

The Correct Option is D

Step 1: Understanding the Question:
The focus here is on Developmental Milestones occurring between birth and 12 months (Infancy).
We need to categorize skills into the first-year timeline versus the toddler years.

Step 2: Detailed Explanation:

• Social smile (E): This emerges very early, usually between 6 to 10 weeks of age.

• Grasps a block (D): Reaching and ulnar grasping develop around 4-5 months; the pincer grasp (picking up small objects) appears by 9-10 months.

• Locates hidden object (C): This indicates the beginning of Object Permanence, typically emerging around 8 months.

• Stands independently (A): Most infants learn to stand alone briefly by 11-12 months.

• Speaks two-word sentences (B): This is a later development. Usually, single words appear at 12 months, but combining two words (Telegraphic speech) occurs between 18 to 24 months.

Step 3: Final Answer:
Abilities A, C, D, and E all appear within the first 12 months. Option B is a second-year milestone.
Therefore, the correct answer is D.