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Write the right answer to the question based on the context passage.

Television drama's whole point is to bring you through an often slow start, followed by a complex development to a point where there are two or three potential denouements before, "Cut!", it is the end of the episode and you will have to await the "right answer" in the following week's show.
This post came to me at 10pm last night, on Day 16 of this challenge, after a day of holidaying in London and with my head (and feet) too weary to put finger to touchscreen.
Mrs Mc and I had just watched another live instalment of Broadchurch, murder mystery extraordinaire, particularly since in the second series there is no actual fresh murder to investigate. The verdict is about to be given on the accused killer from Series 1 when the inevitable happens... Cue title music.
This moment has even gained a moniker in British homes, based on the theme tune to the real masters of the four-times-a-week cliffhanger, London-based soap opera Eastenders. It's call a "ba...ba...ba...ba, ba, ba-ba-ba-ba" (YouTube will provide overseas readers with auditory explanation).
Eastenders is such a master of writing in the perfect pace that every 28 minute episode ends with a tantalising screen freeze on the latest shocked face / smirking baddy / confused victim. For really big stories the cliffhanger can last significantly longer. This week, to celebrate the show's 30 year birthday, we will finally find out the answer to a question unanswered for the past 14 months: "Who killed Lucy Beale?"
Now, most classrooms do not involve murder, incest, dodgy deals and danger, but "good teaching" encourages a type of pacing that totally ignores the ingredients that have millions in the edges of their seats every day: the good old cliffhanger. In fact, we see teachers giving away the punchline at the beginning: "Today we are learning this:...". Question: What was the soap opera admired by British people that the author says is a master of writing?
Solution: Eastenders
Why? The seventh sentence of the passage clearly states that Eastenders is master of writing. So, the answer is Eastenders.

New input: My mother's shopping lists were ordered by rules known only to her. As you slid your finger down the columns of groceries and toiletries, you would invariably be stopped by something along the lines of "2dozjumHerbal Essences" or "1pepperoni TC," with the "TC" underlined twice and flanked by gnarled masses of pencil scratch-outs. When we were kids, we dreaded accompanying her to Wal-Mart, or worse, the Cosco at the edge of town, where the echoing rafters and limitless aisles seemed to mock the confusion into which we were inevitably thrown when handed torn-off fragments of the list. Of course, it was easy enough to see in hindsight that "2dozjumHerbal Essences" was merely the bastard child of two drunkenly weaving columns--we had been supposed to get two dozen jumbo eggs and a bottle of my mother's favourite brand of shampoo (ever inventive in creating proprietary abbreviations--"TC" standing for, what else, thin crust pizza--my mother scrupulously wrote out brand names in full).
It was a little like ordering chemicals for a laboratory, sans any knowledge of chemistry--or, for that matter, laboratories, although my ignorance of the distinction between baking soda and baking powder cannot be entirely the root of my confusion. Eventually I--and my siblings--learned the difference between tomato paste and tomato sauce, and could readily distinguish one brand of laundry detergent from a similarly-styled knock-off, but my shame-faced trips back to the mothercart never ceased. I would track her down, most often in the produce section--she was usually loath to trust us with the delicate task of selecting the very best fruits and vegetables--and hand her back my portion of the list, asking for an explanation. Usually it amounted to a failure of awareness on my part--get the kind of soap we always get, of course! Question: Who knew the rules to mothers's shopping list?
Solution:
Mother