请教一道新东方小兰题

shn19891989

a medieval manuscript called L contains all eighteen extant tragedies by the Greek playwright Euripides.Of these,ten called the select plays, are accompanied in L by ancient commentaries and also apear in other medieval manuscripts; this group includes some of Euripide's best known works ,including the Medea.The other eight ,which appear in alphabetical order, without commentry.The Electra is one of the alphaabeticals.
which of the following can be reliably concluded on the basis of the statements given?
a.  Only Euripide's best known works are accompanied by ancient commentaries in extant medieval manuscripts.
b. the select plays are accompanied by ancient commentaries because they were the best known of Euripides' works.
c. No commentaries were written about Euripides' Electra in ancient times.

d. Euripides' Medea never apears in medieval manuscripts unaccompanied by ancient commentary.

e. Euripides's Electra does not appear accompanied by a commentary in any extant medieval manuscript.
答案是选E，我的答案是A