Answer:
A). Elizabeth Warren has proposed using a new inflation measure that outpaces the current one used.
B). The former program trustee argues that the current inflation measure overcompensates seniors since it ignores the substitution effect.
C). According to advocates for seniors, the 2020 COLA is not enough to compensate for rising healthcare costs.
Explanation:
In the context of the article titled 'Social Security checks to rise modestly amid a push to expand benefits,' the first three statements assert the appropriate claims. It correctly states the new course of action for dealing with inflation as proposed by Elizabeth Warren after Blahous and seniors' complaint about the problems associated with the present rate for adjusting inflation as it ignored the impact created by substitution. Since the present program(COLA) could not fulfill the compensation needs of the seniors, the new program has been proposed to overcome these flaws and compensate them appropriately.
