Found even in ancient Egyptian mummies, the parasitic Guinea worm became the focus of a global public health
campaign in 1986; this species of parasite has declined for two decades, and may finally be eradicated from the
earth by 2010.
• Found even in ancient Egyptian mummies, the parasitic Guinea worm became the focus of a global public health
campaign in 1986; this species of parasite has
• Being the focus of a global public health campaign since 1986 and found even in ancient Egyptian mummies; the
population of the parasitic Guinea worm has
• Having been the focus of a global public health campaign in 1986, it was found even in ancient Egyptian mummies;
the frequency of the parasitic Guinea worm
• Being found even in ancient Egyptian mummies and having been the focus of a global public health campaign since
1986, the frequency of the parasitic Guinea worm
• Having been found even in ancient Egyptian mummies and being the focus of a global public health campaign since
1986, the parasitic Guinea worm species

semi-colon demands IC => eliminate B.
Who was the focus ? PG . So it should come right after the opening modifier in E => Eliminated.
In C , we have the same problem as B.
In D, the modifier uses past tense declined => implying that the species already declined which is not the case as it might decline by 2010.
Thus A wins.

Found even in ancient Egyptian mummies, the parasitic Guinea worm became the focus of a global public health
campaign in 1986; this species of parasite has declined for two decades, and may finally be eradicated from the
earth by 2010.
• Found even in ancient Egyptian mummies, the parasitic Guinea worm became the focus of a global public health
campaign in 1986; this species of parasite has
• Being the focus of a global public health campaign since 1986 and found even in ancient Egyptian mummies; the
population of the parasitic Guinea worm has - Fragment error
• Having been the focus of a global public health campaign in 1986, it was found even in ancient Egyptian mummies;
the frequency of the parasitic Guinea worm
1. "it" has a referrant error
2. this option has modifier error as well
3. usage of having been is wrong
• Being found even in ancient Egyptian mummies and having been the focus of a global public health campaign since
1986, the frequency of the parasitic Guinea worm
1. Being is unnecessary
2. usage of having been is wrong
3. modifier issue
• Having been found even in ancient Egyptian mummies and being the focus of a global public health campaign since
1986, the parasitic Guinea worm species
1. Being is unnecessary
2. usage of having been is wrong


Tips:
1. "Having been" or "having verb-ed" usage is correct only when the clause represents the cause of other statement.
2. Clauses joined with the help of a semicolon should be independent clauses[should have subject + verb].
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