Iwill like ,rate and why does wanda's letter make peggy happy?

a.
she learns how well wanda is doing in her new school.

b.
she finds out that wanda really does have a hundred dresses in her new home.

c.
she is relieved that wanda didn't mind that the girls teased her.

d.
she thinks wanda's gift of the picture shows that wanda isn't angry at her.