D because <span>a band of frequencies used in radio and television transmission, especially as used by a particular station.
</span>
The ancient city of Harappa was considered to be advanced during its time due to multiple characteristics such as: the sheer size of the city (known today as urban); a large network of trade/commerce/transport technology and economy; accuracy of their measurement systems for length and mass; their use of measurements in architectural design, sewerage and drainage systems; innovative metallurgy techniques and manipulation of precious metals (lead, tin, bronze, copper).
between 18-24 years old
Between the ages 18-24 years, the
person is an emerging adult. This is the period between (late)adolescence and (early)adulthood.
This is the life span when the person becomes more independent and becomes
settled in deciding the particulars of his home, work and politics.
Never lie or betray a friend{hope that helps}^_^