Excerpt from quilts and rugs
kate mcconnaughey

(10) some of the heirloom quilts which still exist are marvels of design and stitching.
read the passage. look at the underlined section marked number 10. there may be a mistake in the way the sentence is written. if you find a mistake, choose the answer that corrects the mistake. if there is no mistake, choose ‘correct as is.’
a) correct as is.
b) some of the heirloom quilts are marvels of design and stitching which still exist.
c) some of the heirloom quilts are marvels which still exist of design and stitching.
d) which still exist, some of the heirloom quilts which still exist are marvels of design and stitching.