Answer:
The issue of lacking a global standard calendar.
Explanation:
Countries maintain distinct calendars that align with their respective cultural and religious practices. Each nation adheres to its unique customs, often resulting in holidays that can disrupt business, markets, and trading on days when others are operating. This can confuse tourists who may be unaware of a country's public holidays, causing them to find attractions and museums closed. A unified global calendar would benefit commerce, travelers, and international trade.
B: They faced significant challenges, including being unable to vote and struggling to find jobs, often needing to relocate to northern areas to work in factories.
Greetings.
The most appropriate answer appears to be D.
Wishing you a great day
<span>The Moon is the accurate response (Brainliest please)
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