The correct answer is B. False.
Grignard is a good example of carbon nucleophiles and organometallic reagents. By insertion of magnesium, Grignard reagents are being prepared between the aryl halides and carbon-halogen bond of alkyl.
Glassware which is used in Grignard reaction must be free from water for an important conductivity.
it is not true that ethers are common solvent in a reaction of Grignard. Alcohol, for example, 2-propanol which can be used to conduct reactions.