Cygnus X-1 and LMC X-3 are black holes if the masses of the unseen companions are a. between 1.4 and 3 solar masses. b. more than 3 solar masses. c. between 0.4 and 1.4 solar masses. d. less than 0.4 solar masses e. not larger than the masses of the stars that we can see.

Cygnus X-1 and LMC X-3 are black holes if the masses of the unseen companions are a. between 1.4 and 3 solar masses. b. more than 3 solar masses. c. between 0.4 and 1.4 solar masses. d. less than 0.4 solar masses e. not larger than the masses of the stars that we can see.

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Cygnus X-1 and LMC X-3 are black holes if the masses of the unseen companions are

	a.	between 1.4 and 3 solar masses.
	b.	more than 3 solar masses.
	c.	between 0.4 and 1.4 solar masses.
	d.	less than 0.4 solar masses
	e.	not larger than the masses of the stars that we can see.