3. In this period, religious books were written, such as Doctrina Cristiana and Urbana and Felisa, to support or contradict the Catholic Church.
a. Spanish Period
b. American Period
c. 21st Century Period
d. Period of Enlightenment

The correct answer is a. Spanish Period

Explanation:

The correct answer is A because it refers to the books that were written in the period when Philippines were part of Spain. In that period Spain was trying to spread Catholicism in this areas.

All other answer are wrong because Doctrina Cristiana was written in 16th Century, that is why it can be C and D (Enlightenment was spreading in the 18th Century, mostly in France)

It can't be B because it refers to the period of late 19th and first half of 20th Century, when Americans were controlling this island.

Religious books were written, such as Doctrina Cristiana and Urbana  and Felisa, to support or contradict the Catholic Church during the American period

“The Doctrina Christiana" is a religious book that was written as a translation to Christian songs and hymnals from Spanish into the native language of the FIlipinos.

Urbana at Feliza was compiled by a Reverend father In Cavite where tried to show examples of model character, behavior and attitudes for the people of Philippines to practise. It was compiled in 1864.

Both of these books were written during the American Period to support the Catholic church and its teachings.

Read more here:

link

i need more info to answer