To make an inference correctly, a reader should

explain how the inference is influenced by modern language.

show how the inference impacts the language in the text

provide evidence to support the inference

describe how the inference affects the plot.

Option C, provide evidence to support the inference

Explanation:

An inference is made based on the information given in the text. A reader is able to draw inferences when proper evidence are provided in the text to scientifically or logically support an the jist of write up.

Generally a good reader make inferences not only on the basis of information provided with in the text but also on the basis of his/her experienced understanding

Without any inference and related test , a write up or text is a plain theory or just a summary.

Thus, option C is correct

i think it's c