Question

                 Which synonym of the word look would be most effective in the following sentence?

Answer 1

Answer:

B. scrutinize

Explanation:

Scrutinize fits the best in the sentence because means to "examine or inspect closely and thoroughly".

Answer 2

B would be the most appropriate.

Leaning forward with narrowed eyes fits the definition of scrutinize which is to examine very closely and carefully.

Hope it helped :)