During the first half of the 20th century, Henry ford made efforts to build a loyal customer base by

manufacturing reliable and affordable cars

Using the FordPass reward system

Explanation:

FordPass Rewards program, customers can collect points by buying new or certified pre-owned vehicles or having their vehicle serviced at a Ford dealership. They can save those points without a cap, and then redeem them toward the purchase or lease of a new vehicle or to pay for parts and service.

This therefore kept customers coming back to spend money at ford because they had collected points creating a system of loyalty and people familiar with the company. Hope this helps!!

the protestant reformation's started in 1517, disturbing the religious and political order in europe´s catholic countries. the outcome was the european wars of religion prosecuted in europe in the 16th, 17th and part of the 18th century. nonetheless, uprisings, territorial disputes, and great power conflicts were also causes of the wars.  

the correct answer is d