Question

read the sentence.

eliana rodriguez who teaches biology is my favorite teacher because she gives engaging lectures.

which is the best way to revise this sentence?

eliana rodriguez, who teaches biology is my favorite teacher because she gives engaging lectures.
eliana rodriguez, who teaches biology, is my favorite teacher because she gives engaging lectures.
eliana rodriguez who teaches biology is my favorite teacher because, she gives engaging lectures.
eliana rodriguez who teaches biology, is my favorite teacher, because, she gives engaging lectures.

Explanation:

Analyze the clause type

The clause "who teaches biology" provides extra, non-essential information about Eliana Rodriguez. Because her name already uniquely identifies her, this relative clause is nonrestrictive (non-essential) and must be set off by commas on both sides.

Evaluate the options

• Option 1: "Eliana Rodriguez, who teaches biology is my favorite..." (Missing the closing comma after "biology").
• Option 2: "Eliana Rodriguez, who teaches biology, is my favorite..." (Correctly sets off the nonrestrictive clause with commas on both sides).
• Option 3: "Eliana Rodriguez who teaches biology is my favorite... because, she..." (Incorrectly places a comma after "because" and lacks commas around the nonrestrictive clause).
• Option 4: "Eliana Rodriguez who teaches biology, is my favorite... because, she..." (Incorrectly places a comma after "biology" without a matching opening comma, and incorrectly places a comma after "because").

Answer:

• (A) Eliana Rodriguez, who teaches biology is my favorite teacher because she gives engaging lectures.
• (B) Eliana Rodriguez, who teaches biology, is my favorite teacher because she gives engaging lectures. (Correct answer)
• (C) Eliana Rodriguez who teaches biology is my favorite teacher because, she gives engaging lectures.
• (D) Eliana Rodriguez who teaches biology, is my favorite teacher, because, she gives engaging lectures.