E6D10

What is a primary advantage of using a toroidal core instead of a solenoidal core in an inductor?

1. AToroidal cores confine most of the magnetic field within the core material
2. BToroidal cores make it easier to couple the magnetic energy into other components
3. CToroidal cores exhibit greater hysteresis
4. DToroidal cores have lower Q characteristics

Pick an answer to check it.