The correct answer is - <span>Running takes discipline, and many people enjoy running.
This is faulty coordination because the first sentence is somewhat the opposite of the second one - usually, when something demands a lot of discipline and hard work, people are not going to enjoy doing that. This is why the coordination between these two sentences is wrong - it should say something like 'however, many people enjoy running,' instead of 'and.'
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If you're meaning just a sentence with these two words, then:
She approached the significant hole in the wall, peering through it, a soft sigh of defeat passing her lips when she saw that the impenetrable vault she was meant to go wasn't there.
That help any?
Please give the full question.