(1) McClain was one of the pioneers in the introduction of '' Ragtime Minstrelsy '' , which opened a wider range of styles on the eve of the vaudevillized era .
(2) McClain was one of the pioneers in introducing '' ragtime minstrelsy '' , which opened a wider range of styles on the eve of the vaudevillized era .

Do these two sentences mean the same thing?

Select from the following.
(a). no
(b). yes
(b).