A daily weather map showing isobars is an example of an Isopleth map.

Here`s why:

Option 1 - Choropleth map: In choropleth maps, regions are shaded or patterned in relation to a statistical variable that represents an aggregate summary of a geographic characteristic within each area. Thus, this option is incorrect because it`s unrelated to weather conditions or isobars.

Option 2 - Isopleth map: These maps use lines to connect points of equal value, effectively visualizing geographical variations. Consequently, they`re ideal for representing weather conditions such as isobars, or lines of constant pressure. Hence, this is the correct answer.

Option 3 - Chorochromatic map: These are maps that use different colors or hues to represent categorical distinctions. They`re used more for demographic representations and not for illustrations like weather conditions.

Option 4 - Choroschematic map: This class of maps use schematization or simplification of geographic forms. This is not applicable to the concept of a daily weather map showing isobars.

So, the correct answer is `Isopleth map` as it`s used to show weather map with isobars.