Use the map below to answer the following question: A map image showing the location of cities in modern-day Pakistan is shown. Most cities are located in the northeast of Pakistan. The Indus River originates in northeast Pakistan and flows southwest toward the Arabian Sea. Feeding into the Indus River are multiple secondary rivers such as the Shelum, Chenob, and Kabul rivers. In the middle of the country is the Suleimain Mountains and in the southeast is the Thar Desert. In the southwest is the Dasht River, but no major city is located near this river.
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Which landform made the area indicated on the map an ideal location for civilization to develop, and why?

The placement of the Himalayan Mountains kept it free from monsoon rains.
The length of the Indus River made it easy to use for transportation.
The Indus River caused the formation of a fertile valley between mountains and the desert.
The Himalayan Mountains made it impossible for attackers to cross the nearby mountain range.

Which of the following methods could be considered a "best practice" in terms of informing respondents how their answers to an on-line survey about personal information will be protected? respondents are informed that investigators will try to keep their participation confidential; however, confidentiality cannot be assured.respondents are informed that a research assistant will transfer all the research data to a password-protected computer that is not connected to the internet, via a usb flashdrive. the computer is located in a research team member's office.the investigator uses the informed consent process to explain her institution's method for guaranteeing absolute confidentiality of research data.the investigator uses the informed consent process to explain how respondent data will be transmitted from the website to his encrypted database without ever recording respondents' ip addresses, but explains that on the internet confidentiality cannot be absolutely guaranteed.the investigator uses the informed consent process to explain how respondent data will be transmitted from the website to his encrypted database without ever recording respondents' ip addresses, but explains that on the internet confidentiality cannot be absolutely guaranteed