When you use the keyboard to scroll to a different position in the document, the automatically moves when you press the desired keys.

a. roster
b. alt tag
c. insertion point
d. smart tag

Option C i.e., insertion point is the correct option.

Explanation:

if any user or person scrolls the following contents by using the keyboard from one position to another position in the document of the user then, the insertion point moves automatically without any implementation when the user presses any key they want. If the user clicks on the arrow keys then, it also works like that. So, that's why the following option is correct.

some have built technology like spoofed call blockers into their networks, so there's nothing you would even have to install.

this happens because the number is known for scamming, they don't want it to me known as "scam likely." perhaps it's just a telemarketer. maybe it's an identity thief. it might even be a scam artist.  

either way, "scam likely" is probably not an old friend whose number you forgot that you saved. it's your wireless carrier's way of letting you know: answer at your own risk.

explanation:

to combat the seemingly rising epidemic of spam callers in the u.s., the nation's four major wireless carriers have been trying out new methods to reduce the number of unsolicited calls americans receive each day.

some have built technology like spoofed call blockers into their networks, so there's nothing you would even have to install.

hope this . mark me brainliest.