Question 56: Why would you use several storage engines?

(Find all correct answers)
 

a) By using several engines in a db, you can combine their
   features and advantages.
b) The more engines you use, the more you can do in parallel.
c) Tables differ in size, amount of reads/writes etc and
   therefore have different storage-engine requirements.
d) Certain features are only are only available with
   certain storage engines.

 
[ Basic Optimizations (10%) - Choosing Appropriate Storage Engines ]