答案:D
解析:
Choice D is correct. A linear equation in one variable will have no solution if the equation reduces to an equation of the form:
ax+b=cx+d, where a=c and b≠d.
Therefore, if a=4, the equation 4x+5=4x-3 yields 5=-3. This is not true for any values of x comma and therefore this value of a results in an equation with no solutions.