$1)$ When we $$common size$$ accounting statements

i$.$ On the balance sheet, each item is expressed as a percentage of total assets

ii$.$ On the income statement, each item is expressed as a percentage of total revenue

iii On the balance sheet, each item is expressed as a percentage of total revenue

iv$.$ On the income statement, each item is expressed as a percentage of total assets

$($a$)$ i and ii

$($b$)$ iii and iv

$2)$ When we $$common size$$ accounting statements, both comparisons across firms of different sizes as well as monitoring changes through time become easier

$($a$)$ true

$($b$)$ false