Multi-choice problem: Continue writing the next sentence in this paragraph:

How to measure language competence
Develop specific scales for language competence.
Because the idea of developing language skills in a certain language is so subjective, it's usually necessary for the instructor or other person who is measuring language skill to set up an arbitrary, but very important, quantitative scale.
Attach numbers to your language competence scale.

Options:
i. Most of the time, at least five numbers go in a certain direction. If that number is higher or lower than that, then you've already established how many points that number makes on a given scale..
ii. Putting numbers in place identically increases the inaccuracy of the scale. Transfer numbers to your " language " scale and many others..
iii. Many individuals will start with a simple scale from 1 to 10. This is a starting point for identifying and using the kinds of criteria you need to measure language competence in a person or group of people..
iv. To perform this, simply add together each single number in the form of a single digit. Place the sum of these factors on the bottom of the scale..
iii.