Join together words and their definitions

1 Trial
2 Channel
3 maturity
4 publicity
5 assist
6 impact
7 temporary
8 generate
9 counter
10 loss leader
11 sparing
12 complement
13 prospect
14 spread
15 via

A produce or create sth
B lasting or intended to last only for a short time; not permanent
C product or service that is sold at a very low price in order to attract customers, who will then buy goods or services that produce more profit
D reply to sb by trying to prove that what they said is not true
E careful to use or give only a little of sth
F search an area for gold, minerals, oil, etc.
G method or system that people use to get information or to communicate
H thing that adds new qualities to sth in a way that improves it or makes it more attractive
I affect or make sth affect, be known by, or used by more and more people
J business of attracting the attention of the public to sth/sb; the things that are done to attract attention
K help sb to do sth, especially by doing a share of the work
L by means of a particular person, system, etc.
M time when a product has been sold for a long time and is well known, but its sales are not increasing
N powerful effect that sth has on sb/sth; process of testing a product to see whether it is safe, effective etc