Because of the risks associated with childhood obesity—it can lead to diabetes, cancer, cardiovascular disease—
many parents, educators, and medical professionals have become concerned about the extent that unhealthy foods are advertised to children.
B) many parents, educators, and medical professionals who have become concerned about the extent to which --> not an independent clause, it should be followed by IC
D) many parents, educators, as well as medical professionals having become concerned about the extent that --> same as B, as well as is unnecessary, or we need conjuction between parents and educators
E) it has become the concern of many parents, educators, and medical professionals about the extent to which --> making it more comlex, when we can directly say that " many parents, educators, and medical professionals have become concerned about"
Now, A vs. C
A) many parents, educators, and medical professionals have become concerned about the extent that -->
"that" is modifying the extent
"the extent unhealthy foods are advertised to children." --> two subjects
"unhealthy foods are advertised to children the extent ." --> structural error
C) many parents, educators, and medical professionals have become concerned about the extent to which -->
"to which" is modifying the extent
"unhealthy foods are advertised to the extent to children." --> makes more sense
Am I going in right direction to eliminate the option A?
generisThanks!