Identify the Letter of the Choice That Best Matches the Phrase

Multiple Choice

Identify the letter of the choice that best matches the phrase or definition.
-Typically has one program running at a time, though others may be running in the background

A) virtualization
B) mobile operating system
C) Blackberry
D) sleep mode
E) hibernate
F) administrator account
G) user name
H) password
I) Google Play
J) permissions
K) thrashing
L) NFC
M) Passbook
N) command language
O) Wallet
P) SkyDrive
Q) Linux
R) antivirus
S) iCloud
T) account