The correct answer is: b) Religious harmony.
The three lamas who consecrated Phuntsog Namgyal represented the three main Buddhist lineages prevalent in the region: the Nyingma, Kagyu, and Gelug. This symbolized the religious harmony that existed in Bhutan at the time. The three lamas were all respected religious leaders, and their participation in Phuntsog Namgyal’s consecration showed that they supported him as the new ruler of Bhutan.
The other options are incorrect. Option a) is incorrect because the three lamas were not political leaders. Option c) is incorrect because there was no military alliance between the three lamas. Option d) is incorrect because the three lamas were not from different cultures.