On March 23, 1999, the musical MAMMA MIA! made its first public appearance in London. it ___ the kind of welcome it has been getting ever since.
(A) is given
(B) was given
(C) has given
(D) had given
問題：
1.請問句型中出現兩個it的意思以及文法，看不懂本句的結構。
2.想請問答案是B還是C？因為看到兩種答案都有人說正確。
謝謝