Excluding children from participation in research, while well intentioned, may deny children the benefits of participation and prevent the collection of sufficient data about the possible effects of potentially therapeutic agents in children. a. true b. false

That statement is true.
The intention of excluding the children is to ensure that they wouldn't be exposed to any negative effects from the alteration made during the research.
But an argument could be made that if we truly want to collect the data about a certain effect therapeutic agents in children, including them in research might be necessary.

The repetition of initial consonant sounds is called alliteration