Demand for lamb is given by the equation:

Qd= 217.1 - 0.112PL+ 0.125PB- 0.0198Y

where:

Qdis the quantity of lamb sold in grams per person per week.

PLis the price of lamb (in dollars per kg, at 1985 prices).

PBis the price of beef (in dollars per kg, at 1985 prices).

Y is annual personal disposable income per head ($, at 1995 prices).

What would happen to the demand for lamb if,

a) The price of lamb went up by $ 2 per kg (at 1985 prices).

Group of answer choices

a. The demand for lamb will decrease by 0.112 Kg

b. The demand for lamb will increase by 0.224 Kg

c. The demand for lamb will decrease by 0.224 Kg

d. The demand for lamb is 217.1 Kg