What distinguishes the painting of this artist from HER CONTEMPORARIES ARE the combination of vibrant colors with striking patterns.

What distinguishes the painting of this artist from HER CONTEMPORARIES ARE the combination of vibrant colors with striking patterns.

a) her contemporaries are

b) her contemporaries is

c) those of her contemporaries are

d) those of her contemporaries is

e) that of her contemporaries are

I chose choice c but the actual answer is choice d. I’m not sure why that I am incorrect.

The harsh condition in which bristlecone pine trees live may help to explain their exceptional longevity, (because those same conditions are also inhospitable to) the pest that can attack the trees.

The harsh condition in which bristlecone pine trees live may help to explain their exceptional longevity, (because those same conditions are also inhospitable to) the pest that can attack the trees.

a)because those same condition are also inhospitable to

b because those same conditions were inhospitable also for

c) he same conditions being also inhospitable with

d) since those conditions that are also inhospitable to

e)those conditions are also inhospitable to