One situation that would definitely NOT lead to an increase in productivity is
D. an increase in the cost of factors of production .
An increase in the cost of production would rather lead to a decrease in productivity - it would make the production more difficult.
Primary resources contain first-hand information, meaning that you are reading the author's own account on a specific topic or event that s/he participated in. ... Examples of a primary source are: Original documents such as diaries, speeches, manuscripts, letters, interviews, records, eyewitness accounts, autobiographies
When the source translates ideas, feelings, and thoughts into a code, this process is referred to as encoding. When the receiver interprets words or unspoken signals, this is referred to as decoding.
Thus the answer is most likely to be:
d. encoding, decoding
The answer is A. Most preschools will begin tolerating youngsters at around age 2 ½, yet that doesn't mean your tyke is mystically prepared for preschool when he achieves that age. Status for preschool has more to do with where your youngster is formative.
