I am Pilipino can you answer my question please quickly ​

In american sign language, every statement begins with a: preposition. verb. topic. spelled word.

What is the predicate noun in the following sentence? my favorite flower is the rose.

During sensitive periods of brain development like cell migration the brain is vulnerable to effects like: a. malnutrition b. infection c. toxins /drug use d. b and c e. all of the above