Help with this one

[aninditasivaram2406]

Can anyone please tell me why "like" is preferred to "as" in the below example? The correct answer is B and not A as I had thought. Thanks..

126. More than thirty years ago Dr. Barbara McClintock,
the Nobel Prize winner, reported that genes can
"jump," as pearls moving mysteriously from one
necklace to another.
A )as pearls moving mysteriously from one necklace
to another
B) like pearls moving mysteriously from one necklace
to another
C) as pearls do that move mysteriously from one
necklace to others
D )like pearls do that move mysteriously from one
necklace to others
E )as do pearls that move mysteriously from one
necklace to some other one

[camitava]

aninditasivaram2406, 'Like' is generally used to compare between nouns whereas 'as' is used to compare between two clauses! Now if u refer the examples below -
Like X, Y is also a good singer. - Its fine because it compares between X and Y.
But,
I became poor in study as my brother was. It compares between two clauses.
Are you getting me, aninditasivaram2406?

[pahwa]

Here is a tip, if u are confused between LIKE, AS, Such as.

Like is correct when you compare 2 nouns. It aso means "Similar to".
As is used when you compare 2 actions.
Such as is used when you want to be specific and want to give examples.


for example:
Can you buy me some fruits like oranges (this conveys that I need "juicy" fruits, which can or can not be oranges. Lemon will also do.)

Can you buy me fruits such as oranges (this means I need oranges in specific).