The subject of the sentence is distance. Bases is in prepositional phrase.
is the question what distance between bases? if so in MLB its 90 feet
It is the linear distance between the two parallel and identical faces (which are also called the bases).It is the linear distance between the two parallel and identical faces (which are also called the bases).It is the linear distance between the two parallel and identical faces (which are also called the bases).It is the linear distance between the two parallel and identical faces (which are also called the bases).
In Major League Baseball, College baseball and High School baseball, the distance between the bases is 90 feet.
the length.
90 feet
90 feet
60 feet
90ft
60 feet.
60 feet
pairing of single-ringed bases with double -ringed bases
60 feet