The sentence is referring to the relationship between high prices and the availability of goods.
When goods are scarce, prices generally rise — the two occur together. The word "concomitant" means something that happens at the same time as or accompanies something else, making it an excellent fit for the first blank.
The second blank needs a noun indicating a shortage of goods — "scarcity" is the correct term.
Option (A) "accompaniment, dearth" is close, but "accompaniment" is more often used for musical or supportive contexts and is less precise in an economic discussion.
Option (C) "cause, destitution" is incorrect because scarcity is the cause of high prices, not destitution (which means extreme poverty).
Option (D) "result, glut" is incorrect because a glut means oversupply, which would lower prices, not raise them.
Thus, the correct pair is (B) "concomitant, scarcity" to express that high prices often occur alongside scarcity of goods.