Because a manufacturer secures

[tjandrachew]

Because a manufacturer secures a patent for a pharmaceutical compound, the patent does not bar competitors from producing a chemical like it, as long as those chemicals have at least one structural difference with the patented compound.


a Because a manufacturer secures a patent for a pharmaceutical compound, the patent does not bar competitors from producing a chemical like it, as long as those chemicals have at least one structural difference with the patented compound

b That a manufacturer has secured a patent for one of its pharmaceutical compounds do not bar competitors from producing similar chemicals and having at least one important difference from the patented compound

c A patent for one of a manufacturer’s pharmaceutical compounds does not bar competitors from producing a chemical like the patented compound, as long as the two differ structurally in at least one way

d When securing a patent for one of a manufacturer’s pharmaceutical compounds, competitors are not barred from the production of chemicals such as the patented compound, provided that there is at least one structural difference

e Even if a manufacturer secures a patent for one of its pharmaceutical compounds, this does not bar competitors from the production of a chemical such as the patented compound, but having at least one structural difference from it

Hi. My question is regarding the above option (E). The question is from MGMAT CAT 2. The answer guide says "This sentence incorrectly uses this as a standalone pronoun"

Would it be possible to explain more about when "this" can and when it cannot be used please?

Thanks

[tim]

when you use "this", it needs to be followed by a noun, such as "this car" or "this pizza". you can't just use "this"..

[srcc25.anu]

What's the OA? Is it C?

[tim]

the answer is C