In the question below, a sentence is given, divided into three parts, which may or may not contain grammatical errors. From the given options, choose the one that provides the correct combination of replacements for the incorrect part(s). In 1963, Indian anthropologists B.K. Gupta and P. Chatterjee published a study (

• A / based on more advanced skeletal evaluation techniques in which they said that the skeletons (
• B / showed a medley of "primitive" features that belonged to Veddoid-Australoid and Mediterranean races. (
• C 1. In 1963, Indian anthropologists B.K. Gupta and P. Chatterjee publish a study 2. based off more advanced skeletal evaluation techniques in which they said the skeletons 3. showed a medley of "primitive" feature that belonged to Veddoid-Australoid and Mediterranean races.