Why could manuscripts be difficult to read?

A. Handwriting अलग और errors हो सकते थे / Handwriting differed and errors could occur

Step 1: Identify the concept: this is manuscript limitation. Step 2: Handwritten copies had different handwriting and copying errors. Step 3: Remember manuscripts as handwritten and error-prone.

Step 1: concept पहचानें: यह manuscript limitation है। Step 2: हाथ से लिखी copies में handwriting और copying errors होते थे। Step 3: Manuscripts को handwritten and error-prone याद रखें।