The ambassadors, a painting by 16th century dutch artist hans holbein the younger, is an impressive example of northern renaissance portraiture. the painting depicts two elegantly dressed men, 1[marker for question 1] although their fine robes and jewelry indicatingtheir wealth and worldliness. a) no change b) their fine robes and jewelry indicating c) until their fine robes and jewelry indicate d) unless their fine robes and jewelry indicate

The correct answer is B. their fine robes and jewelry indicating.
In the original sentence, the word 'although' is unnecessary - you can either omit although from the sentence to make it correct, or keep although but change the verb into 'indicate' rather than 'indicating.' A is incorrect because there obviously has to be a change. C and D are incorrect as well because they show some kind of contrast, which is unnecessary and incorrect for the context above.

The answer would be c