Since 1992, in an attempt to build up the Atlantic salmon population in each of the seven rivers in which salmon still spawn, state officials in Maine have stocked
them with fry raised in hatcheries from eggs produced by wild fish found in that particular river.
(A) them (B) the river (C) the rivers (D) each river (E) that river
As a solver when one observes the underlined part and the options one should realize that this question is to check one’s ability to choose a Singular Noun or Plural Noun and use of correct referral for the underlined part.
SO Let’s break the sentence in parts: Observe contextually what message it wants to covey as well as observe the parallel construction of the two parts.
Sentence PART 1: Since 1992, in an attempt to build up the Atlantic salmon population in each of the seven rivers in which salmon still spawn
Sentence PART 2: state officials in Maine have stocked
them with fry raised in hatcheries from eggs produced by wild fish found in that particular river.
PART 1 message is about – attempt to build ……. salmon population ………in
each of seven rivers PART 2 message is about – officials have stocked ………... (
what ??) …with fry …produced by …fish found in
that particular river.1) The phrase
that particular river in PART 2 gives us an observational clue that we are speaking about
a singular RIVER hence
options A and C have to be immediately removed.
( THAT particular river needs a singular ANTECEDENT )2) For students whose Grammar rules are in place would
remove options A & C by observing the
singular phrase in each of seven rivers in sentence PART 1, thus PART 2 would need a singular noun.
Now let us see option B, D and E 1)
By using logic we can contextually understand the message the writer wants to convey is not specific to one particular river but for all the 7 RIVERS mentioned (each of the seven rivers), thus using this logic we can remove
options B (the river - specific article THE ) and E(that river - no prior reference for THAT can be seen) 2)
By using grammar rules of PARALLELISM or PARALLEL CONSTRUCTION we can easily
select option D because our
sentence PART 1 is about the
attempt for EACH of the 7 rivers SO the officials have to stock EACH of THEM or EACH RIVER. HENCE CORRECT ANSWER IS - OPTION DA easy question where we could see how 'logic and grammar rules combined' can be used to select a correct response.