Alice, age 7, comes from a low Socio-Economic Status (SES) family. Compared to her peers from higher-SES families, she has difficulty with language learning in school. According to research discussed in the text, one factor related to SES that could be contributing to Alice's language learning difficulty is that:
a.children from lower SES families are less likely to get media exposure
b.children from lower SES families tend to have a smaller family size
c.children from lower SES families have less intrinsic motivation to read
d.lower SES mothers are less likely to talk and read to their infants and toddlers