The four major categories of qualitative research designs are a. historical, ethnography, grounded theory, and exploratory. b. experimental, descriptive, exploratory, and ethnography. c. ethnography, phenomenology, experimental, and quasi-experimental. d. phenomenology, ethnography, grounded theory, and historical. 3.33 points

The correct answer is D. phenomenology, ethnography, grounded theory, and historical.

Explanation:

The four major categories of qualitative research designs are PHENOMENOLOGY, ETHNOGRAPHY, GROUNDED THEORY, AND HISTORICAL.

d. phenomenology, ethnography, grounded theory, and historical

Explanation:

There are four major types of qualitative research design that have been in use. These four include; the phenomenology (describing something existing integrally as a part of the world we live in), ethnography (a branch of anthropology that gives a scientific account of individual human societies), grounded theory ( allowing theory/theories to emerge from data collection and analysis), and case study/historical (Based on an occurrence or series of occurrences)

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place.