For the first question :
A) They are powered by superheated particles spiraling toward black holes. - This is some astronomers' hypothesis which is not shown to be the accurate and final hypothesis and we can't take a side here. Not a correct one.
B) Their exact energy source remains a question for scientists. CORRECT - Lobes are powered by some engines in the center of the galaxy. The nature of the engine is not clear(even though a plausible hypothesis exists)
C) They stretch more than 10
...
A) They are powered by superheated particles spiraling toward black holes. - This is some astronomers' hypothesis which is not shown to be the accurate and final hypothesis and we can't take a side here. Not a correct one.
B) Their exact energy source remains a question for scientists. CORRECT - Lobes are powered by some engines in the center of the galaxy. The nature of the engine is not clear(even though a plausible hypothesis exists)
C) They stretch more than 10
...
.jpg)
