Scientists has discovered that environmental (A) / factors play a greater role / than genetic variants in determining (B) / the height of children (C)...
Question
Scientists has discovered that environmental (A) / factors play a greater role / than genetic variants in determining (B) / the height of children (C) / in low- and middle-income countries (LMICs). (D)
Identify the part which contains the grammatical error. If there is no error, choose (e) No error.