Help please

Change in quantity demanded means that only this factor has changed:

Question 2 options:

Technology

Price

Tastes

Expectations

PRICE

Explanation:

We defined demand as the amount of some product a consumer is willing and able to purchase at each price. That suggests at least two factors in addition to price that affect demand.

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.