You are training an LSTM-based model on AI Platform to summarize text using the following job submission script: gcloud ai-platform jobs submit training $JOB_NAME \ --package-path $TRAINER_PACKAGE_PATH \ --module-name $MAIN_TRAINER_MODULE \ --job-dir $JOB_DIR \ --region $REGION \ --scale-tier basic \ -- \ --epochs 20 \ --batch_size=32 \ --learning_rate=0.001 \ You want to ensure that training time is minimized without significantly compromising the accuracy of your model. What should you do? 

Answer options:

A. Modify the ˜epochs` parameter.
B. Modify the ˜scale-tier` parameter.
C. Modify the ˜batch size` parameter.
D. Modify the ˜learning rate` parameter.

C