Thanks SDAS. It helped.
But I thought that it should be B because of evident parallelism. Can you explain what makes you say "has is not repeated but meant"?
Q.For over forty years carleen maley hutchins has painstakingly analyzed the acoustical secrets of the best violins and builds instruments for testing her fingers.
a.builds instruments for testing
b.has built instruments to test for
c.built instruments to test
d.will build instruments that test
e.would build instruments in testing
Can someone please provide explanation for this question?
Choice A - builds incorrect simple present tense verb
Choice B - to test for her fingers .... distorts meaning with use of modified infinitive
Choice C - (has is not repeated but meant) has built used, correct verb form present perfect tense
Choice D and E - future tense used
Please Kudos if this helps