Ireally need > ~<
which sentence from the paragraph uses a problem-solution structure?

"then two massive fires flared up within two blocks of each other in the western addition section of the city."

"the fire in the mission district was subdued with water found blocks away in a hydrant."

"the main reservoirs of water for the city were 20 miles away, and some of the pipelines to them had been destroyed because they were constructed along the quake’s fault line."

"at one point it became a three-mile-wide wall of raging flames with billowing black clouds of smoke."

"The fire in the Mission District was subdued with water found blocks away in a hydrant."

Explanation:

The problem is the fire, and the solution is the water from the hydrant subduing it!

✿✿✿✿I hope it helped ✿✿✿✿

"The fire in the Mission District was subdued with water found blocks away in a hydrant."

Explanation:

Any sentence that have a problem-solution structure will be a technique in which both the problem/ issue of the situation and the solution for that very same issue will be given in the same line/ sentence. In such type of sentences, there are two sides of the issue juxtaposed with each other. One side will have an issue that may pose a threat or be a problem while the other will have the remedy for the problem.

In such cases, the availability of the solution is a must to give it a full 'problem-solution' sentence. Thus, from the given sentences, the correct sentence that have this type of structure is the second option. In this sentence, the sentence not only talks of the problem of the "fire", but also the solution for this fire which is found in the "water... found blocks away in a hydrant".

umm of course in fact ur getting your answer : )

"a" because he is appealing to logic as oppose to appealing to the audience's emotions.