When middle-school-age children become more competent with the rules governing the use of language to communicate in a given social setting, they are demonstrating knowledge of __________

For a 6-year-old, which of the following fine motor tasks is developmentally appropriate?

writing complete sentences, reading a 2nd-grade level book, and spelling words such as "hippopotamus" running a 4-minute mile, jumping over hurdles, and dribbling a soccer ball writing the letters of the alphabet, writing their name, and writing numbers from 1 to 10 writing in cursive, drawing in three-dimensional shapes, and using symbolism in storytelling

Seven-month-old Freddie is in a quiet room with his mother when music suddenly starts playing. Due to social referencing, Freddie is likely to

A) enjoy the music, if it is pleasant. B) be upset by the sudden music. C) be upset, which will cause his mom to be upset. D) be happy if his mother seems happy.