Which passage displays sensitive language likely to pacify upset customers?

a$.$ We regret your claim that the gym bag you purchased was faulty, but we want you to know we're sorry if you suffered an inconvenience as a consequence.

b$.$ Although rare, sometimes flaws in merchandise can occur despite rigorous quality control. However, only $0\mathrm{.}03$ percent$$the equivalent of three in $10,000$ items$$is ever flagged as faulty.

c$.$ You can be certain that we will hold responsible the quality$-$control inspectors who failed to detect the flaw in the production line. From now on we will make sure that such a malfunction never happens again.

Question Content AreaWhich body paragraph most skillfully provides details about the adjustment and attempts to regain the customer's confidence?

a$.$ As a result of our rigorous quality control, deficiencies requiring alterations of Yuma branded items run no more than $\mathrm{.}03$ percent of our total output. Threads coming undone are extremely rare in our triple$-$stitched merchandise. Because of an unusual malfunction in our stitching line, a damaged needle caused the threads in a few Yuma gym bags to unravel. Immediately we instituted strict daily checks of all our industrial needles to ensure that the stitching on all our merchandise will last the lifetime of the product.

b$.$ Please once again accept our apologies. We hope you were not inconvenienced too much by the malfunctioning gym bag. We want our customers to be happy, which is why we have generous return and exchange policies. Our merchandise satisfies the highest quality standards; unfortunately, sometimes mishaps cannot be avoided.

c$.$ We take complaints such as yours very seriously and investigate each and every one carefully. In your case we have come to the conclusion that no fault on your part can be detected. In fact, apparently some piece of machinery in our plant malfunctioned. Rest assured that we have investigated the flaw and addressed it immediately so it won't ever happen again.