Angelina Is 4 Months Old

Multiple Choice

Angelina is 4 months old. She is not yet sleeping through the night. Angelina's grandmother suggests giving her some solid food. Which of the following statements would a reputable infant care book state in regards to grandmother's suggestion?

A) Research suggests that this is a good strategy.
B) Research suggests that cereal would be the best to try.
C) Research suggests only rice should be used to encourage sleeping through the night.
D) There is no research to support this suggestion.