Chlorofluorocarbons are the best possible solvents to have in car engines for cleaning the electronic sensors in modern automobile ignition systems. These solvents have contributed significantly to automakersâ€™ ability to meet legally mandated emission standards. Now automakers will have to phase out the use of chlorofluorocarbons at the same time that emission standards are becoming more stringent.
If under the circumstances described above cars continue to meet emission standards, which one of the following is the most strongly supported inference?
(A) As emission standards become more stringent, automakers will increasingly cooperate with each other in the area of emission control.
(B) Car engines will be radically redesigned so as to do away with the need for cleaning the electronic ignition sensors.
(C) There will be a marked shift toward smaller, lighter cars that will have less powerful engines but will use their fuel more efficiently.
(D) The solvents developed to replace chlorofluorocarbons in car engines will be only marginally less effective than the chlorofluorocarbons themselves.
(E) Something other than the cleansers for electronic ignition sensors will make a relatively greater contribution to meeting emission standards than at present.
Plz explain especially B and E?