Which of the Following Is a Characteristic of Cyclic Ethers

Multiple Choice

Which of the following is a characteristic of cyclic ethers?

A) Cyclic ethers have a bond angle of 180° about the C-O-C bond.
B) They are compounds containing C-O-H bonds in which the oxygen involved in these bonds are part of the ring.
C) The oxygen atom of the C-O-C bond is part of the ring.
D) They are compounds containing C-O double bonds in which the carbon involved in this bond is part of the ring.