IMO A

The dancing doll line sold slightly more than $3.5 million worth of toys last year , 40% more than the Teeny Tiny Trucks line did and nearly 3 times as much as the Basic Blocks line's sales.

A. the Teeny Tiny Trucks line did and nearly 3 times as much as the Basic Blocks Line's Sales
B. we cannot remove some word from the actual statement (e.g. "LINE" here) unless it is redundant or implicating wrong meaning.
C. "The" is missing after as much as. "The" should be there before the name of the company.
D. "more than" is wrong
E. "more than" is wrong

IMO E
The dancing doll line sold slightly more than $3.5 million worth of toys last year , 40% more than the Teeny Tiny Trucks line did and nearly 3 times as much as the Basic Blocks line's sales.
A. the Teeny Tiny Trucks line did and nearly 3 times as much as the Basic Blocks Line's Sales
B. the Teeny Tiny Trucks did and nearly 3 times what the Basic Blocks' sales were
C. the Teeny Tiny Trucks line sold and nearly 3 times as much as Basic Blocks' sales
D. the Teeny Tiny Trucks line and nearly 3 times more than Basic Blocks sales
E. the Teeny Tiny Trucks line and nearly 3 times more than Basic Blocks line

Here words after comma "40% more than....sales" are acting as modifier adding details to whatever is mentioned in the previous sentence. Eventhough it is comparison, one need not try to treat it as complete sentence. Hence "did" after Truck line is redundant and unnecessary as it is just modifier. Also the two items "truck line" and "Block line" need to be parallel. Only E correctly does so.
what is the OA?

max37274 wrote:IMO E
The dancing doll line sold slightly more than $3.5 million worth of toys last year , 40% more than the Teeny Tiny Trucks line did and nearly 3 times as much as the Basic Blocks line's sales.
A. the Teeny Tiny Trucks line did and nearly 3 times as much as the Basic Blocks Line's Sales
B. the Teeny Tiny Trucks did and nearly 3 times what the Basic Blocks' sales were
C. the Teeny Tiny Trucks line sold and nearly 3 times as much as Basic Blocks' sales
D. the Teeny Tiny Trucks line and nearly 3 times more than Basic Blocks sales
E. the Teeny Tiny Trucks line and nearly 3 times more than Basic Blocks line

Here words after comma "40% more than....sales" are acting as modifier adding details to whatever is mentioned in the previous sentence. Eventhough it is comparison, one need not try to treat it as complete sentence. Hence "did" after Truck line is redundant and unnecessary as it is just modifier. Also the two items "truck line" and "Block line" need to be parallel. Only E correctly does so.
what is the OA?

OA is E

But somehow am not convinced with the argument. Y r we compromising on the comparison by stating that it is in modifying clause? Arnt we comparing Dancing Doll Line sales with Teeny Tiny Trucks Line and Basic Blocks?