In which sentence is the plural possessive of singer formed correctly?

a.
those singers microphones are clipped to their shirts.

b.
those singers’ microphones are clipped to their shirts.

c.
those singer's microphones are clipped to their shirts.

d.
those singers’s microphones are clipped to their shirts.

When was the first permanent english colony established in america 1707 1607 1589 1609

Danilo has been working for metropolitan taxi for three months. he expected that his job would be to drive around the city, pick up fares, and drop them off at their desired locations, but in his first few days on the job he realized that the job entails much more. he must keep his taxi cab clean and neat, and some days he will be stationed at the shop and go to people's houses to pick them up and bring them to the local airport. within a few months, he has learned that taxi drivers often express frustration with the people they call "civilians"—that is, non–taxi drivers, whose driving skills they complain about incessantly. in his first few months on the job, describes what danilo is undergoing.

People are willing to pay more for a diamond than for a bottle of water because