b. Picture completion items
Answer:
<em>Americans get a day off work on October 12 to celebrate Columbus Day. It's an annual holiday that commemorates the day on October 12, 1492, when the Italian explorer Christopher Columbus officially set foot in the Americas, and claimed the land for Spain. It has been a national holiday in the United States since 1937</em>
A - only having one sex partner at a time.
No other answer comes close to being correct. Most modern-day societies are practicing monogamy as the main type of relationship between two people.
