I think the answer is B. Observing because normally when a child shares ideas verbally or through symbolic representation they often observe others.
Parietal art, hope this helps!
Kara Stacy (born 1998) is an emerging composer based in Central Florida who has graduated with a BA in Music Education from Florida Southern College and is pursuing an MME from Florida State University. Most recently, Kara was the winner of the 2020 Raymond Brock Memorial Student Composer's Competition through the American Choral Director's Association. As a primarily choral composer, she prides herself in writing melodies that are both accessible and exciting to her students, and lyrics from a wide variety of poets.
I'll give you one number 2. is fence
For example, if there is a L shaped sketch and you dimension from the bottom of the L to just above the horizontal part, and then you dimension the vertical part from the end point of the last dimension you'd be okay. But, if you dimensioned both of those lengths and then the total length you would be over dimensioning the sketch.